Home » Public Forums » GMCnet » Recommendation needed for a nice quiet water pump
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| Re: Recommendation for a nice quiet water pump [message #349977 is a reply to message #349976] |
Sat, 09 November 2019 08:37   |
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Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma: 7
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Senior Member |
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6cuda6 wrote on Sat, 09 November 2019 09:17Seeing as how im on a system component upgrade kick (plus its inside work so i can stay warm...lol) i may as well replace the noisy water pump in this rig.....need recommendation please and thanks.
Rich,
I understand why you might want this, but think about it. All of the new three and four diaphragm pumps are relatively quiet. While I will admit that the OE Par (luga-luga) pumps can be annoying, a silent pump may serve you poorly. In my world, many have found that a pump so quiet it could not be heard undersail was a disaster. Taps often vibrate open and it doesn't take much or long to pump a quantity of the potable water overboard. While potable water is not as precious to an RV as it might be on tidal water, it is still a serious consideration. Oftimes I, have been sitting in a salon enjoying company when the potable pump would rattle. This causes an immediate reaction as some jump to find the dripping tap.
If you are trying to have the pump not make noise during nighttime flush, consider included a small bladder tank (head tank, expansion tank) in the system. 26s have the room to accommodate such. Then turn the pump off for the night.
Matt
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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| Re: Recommendation for a nice quiet water pump [message #349978 is a reply to message #349977] |
Sat, 09 November 2019 08:49 |
6cuda6
Messages: 975
Registered: June 2019
Karma: -6
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Senior Member |
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Matt Colie wrote on Sat, 09 November 2019 09:376cuda6 wrote on Sat, 09 November 2019 09:17Seeing as how im on a system component upgrade kick (plus its inside work so i can stay warm...lol) i may as well replace the noisy water pump in this rig.....need recommendation please and thanks.
Rich,
I understand why you might want this, but think about it. All of the new three and four diaphragm pumps are relatively quiet. While I will admit that the OE Par (luga-luga) pumps can be annoying, a silent pump may serve you poorly. In my world, many have found that a pump so quiet it could not be heard undersail was a disaster. Taps often vibrate open and it doesn't take much or long to pump a quantity of the potable water overboard. While potable water is not as precious to an RV as it might be on tidal water, it is still a serious consideration. Oftimes I, have been sitting in a salon enjoying company when the potable pump would rattle. This causes an immediate reaction as some jump to find the dripping tap.
If you are trying to have the pump not make noise during nighttime flush, consider included a small bladder tank (head tank, expansion tank) in the system. 26s have the room to accommodate such. Then turn the pump off for the night.
Matt
Thanks for the insight Matt....didnt think a head tank was a viable install.
Rich Mondor,
Brockville, ON
77 Hughes 2600
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| Re: Recommendation needed for a nice quiet water pump [message #349979 is a reply to message #349976] |
Sat, 09 November 2019 08:56 |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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Senior Member |
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Installing a small accumulator is on my to do list. Mainly to prevent the annoying hystereses during low flow conditions. I have to think this would also act as a muffler/ damper in the system. Anyone have a good part number to buy?
John Lebetski
Woodstock, IL
77 Eleganza II
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| Re: Recommendation needed for a nice quiet water pump [message #349980 is a reply to message #349976] |
Sat, 09 November 2019 10:02 |
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RF_Burns
Messages: 2277
Registered: June 2008
Location: S. Ontario, Canada
Karma: 3
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Senior Member |
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Rich,
I agree with Matt, hearing the water pump run when no one is using water is a cue that a faucet is dripping or worse... you have a leaking pipe somewhere hidden that needs to be found and fixed before water damage is done.
One trick also... I ran a wire from the bath lights to a relay to power the water pump. That way, each time someone enters the bath and turns ON the lights, the water pump gets power. Eliminates having to yell from the bathroom "Honey, can you turn ON the water pump"
JWID
Bruce Hislop
ON Canada
77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.
1 ton front end
http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
My Staff says I never listen to them, or something like that
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| Re: [GMCnet] Recommendation for a nice quiet water pump [message #349981 is a reply to message #349978] |
Sat, 09 November 2019 10:15 |
Russell Mehlenbacher
Messages: 128
Registered: June 2010
Karma: 1
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Senior Member |
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My coach has a triplex pump and had a small shur flo accumulator installed.
I can hear it running under the bed if I listen. I felt the accumulator
worked as a pulse dampner, but why bother. I had bought a freight surplus
(discount!) RO pressure/expansion tank (4 gal) and stuffed that under the
bed. I pump it up as needed and shut it off. It limits water leakage in
case of failure and no one wakes to unexpected vibrations.
Russ
Rochester Hills, Mi
76 Eleganza
On Sat, Nov 9, 2019, 9:50 AM tonka6cuda6--- via Gmclist <
gmclist@list.gmcnet.org> wrote:
> Matt Colie wrote on Sat, 09 November 2019 09:37
>> 6cuda6 wrote on Sat, 09 November 2019 09:17
>>> Seeing as how im on a system component upgrade kick (plus its inside
> work so i can stay warm...lol) i may as well replace the noisy water pump
>>> in this rig.....need recommendation please and thanks.
>>
>> Rich,
>>
>> I understand why you might want this, but think about it. All of the
> new three and four diaphragm pumps are relatively quiet. While I will admit
>> that the OE Par (luga-luga) pumps can be annoying, a silent pump may
> serve you poorly. In my world, many have found that a pump so quiet it
> could
>> not be heard undersail was a disaster. Taps often vibrate open and it
> doesn't take much or long to pump a quantity of the potable water
> overboard.
>> While potable water is not as precious to an RV as it might be on tidal
> water, it is still a serious consideration. Oftimes I, have been sitting in
>> a salon enjoying company when the potable pump would rattle. This
> causes an immediate reaction as some jump to find the dripping tap.
>>
>> If you are trying to have the pump not make noise during nighttime
> flush, consider included a small bladder tank (head tank, expansion tank) in
>> the system. 26s have the room to accommodate such. Then turn the pump
> off for the night.
>>
>> Matt
>
> Thanks for the insight Matt....didnt think a head tank was a viable
> install.
> --
> Rich Mondor,
>
> Brockville, ON
>
> 77 Hughes 2600
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
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Russ & Linda Mehlenbacher
Rochester Hills, Michigan
'76 Eleganza
'74 Sequoia
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| Re: Recommendation needed for a nice quiet water pump [message #349982 is a reply to message #349979] |
Sat, 09 November 2019 10:20 |
JohnS
Messages: 126
Registered: December 2014
Location: Vacaville, CA
Karma: -2
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Senior Member |
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On our 77 Eleganza I was able to fit a 2 gallon (or maybe only one gallon) tank vertically just aft of the water tank. The tanks are available at Home Depot, Lowes, etc. It just barely fits, and for access one needs to take off the deck on which the curbside dinette sat or sits if you still have it. It is not easy working in that space, but I think it's worth it as you can get 2-3 flushes and hand washes before the pump cycles. I charge the bladder with 20 psig air when empty.
I agree with Matt, I like hearing that pump as an alarm if we aren't using water.
John S.
John Shutzbaugh, Vacaville, CA, ncserv@aol.com;
78 Buskirk stretch, "What were we thinking?"
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| Re: [GMCnet] Recommendation for a nice quiet water pump [message #349983 is a reply to message #349981] |
Sat, 09 November 2019 10:38 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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I’m with Matt on a pump that makes noise.
Always shut it off when traveling as you will not hear it running when
fittings come loose while driving.
Randy Van Winkle came up with a switching system that make controlling the
pump very efficiently.
It is called the Winklers remote water pump control kit.
Go to our sight: appliedgmcrvparts and go to search.
Instruction sheets should be in our sight under instructions.
On Sat, Nov 9, 2019 at 8:17 AM Russell Mehlenbacher via Gmclist <
gmclist@list.gmcnet.org> wrote:
> My coach has a triplex pump and had a small shur flo accumulator installed.
> I can hear it running under the bed if I listen. I felt the accumulator
> worked as a pulse dampner, but why bother. I had bought a freight surplus
> (discount!) RO pressure/expansion tank (4 gal) and stuffed that under the
> bed. I pump it up as needed and shut it off. It limits water leakage in
> case of failure and no one wakes to unexpected vibrations.
>
> Russ
> Rochester Hills, Mi
> 76 Eleganza
>
>
> On Sat, Nov 9, 2019, 9:50 AM tonka6cuda6--- via Gmclist gmclist@list.gmcnet.org> wrote:
>
>> Matt Colie wrote on Sat, 09 November 2019 09:37
>>> 6cuda6 wrote on Sat, 09 November 2019 09:17
>>>> Seeing as how im on a system component upgrade kick (plus its inside
>> work so i can stay warm...lol) i may as well replace the noisy water pump
>>>> in this rig.....need recommendation please and thanks.
>>>
>>> Rich,
>>>
>>> I understand why you might want this, but think about it. All of the
>> new three and four diaphragm pumps are relatively quiet. While I will
> admit
>>> that the OE Par (luga-luga) pumps can be annoying, a silent pump may
>> serve you poorly. In my world, many have found that a pump so quiet it
>> could
>>> not be heard undersail was a disaster. Taps often vibrate open and it
>> doesn't take much or long to pump a quantity of the potable water
>> overboard.
>>> While potable water is not as precious to an RV as it might be on tidal
>> water, it is still a serious consideration. Oftimes I, have been
> sitting in
>>> a salon enjoying company when the potable pump would rattle. This
>> causes an immediate reaction as some jump to find the dripping tap.
>>>
>>> If you are trying to have the pump not make noise during nighttime
>> flush, consider included a small bladder tank (head tank, expansion
> tank) in
>>> the system. 26s have the room to accommodate such. Then turn the pump
>> off for the night.
>>>
>>> Matt
>>
>> Thanks for the insight Matt....didnt think a head tank was a viable
>> install.
>> --
>> Rich Mondor,
>>
>> Brockville, ON
>>
>> 77 Hughes 2600
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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| Re: [GMCnet] Recommendation needed for a nice quiet water pump [message #349988 is a reply to message #349982] |
Sat, 09 November 2019 18:04 |
powwerjon
Messages: 849
Registered: March 2013
Karma: -2
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Senior Member |
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I can recommend an expansion tank for your water system. I suggest the 2
gallon size and it will give you the best service possible and what I use.
Go to Ace Hardware, Lowes, Home Depot and do a search for expansion tank
and several will pop up at each site. They typically run in the $38 to
$42 +/-. DO NOT get the little black plastic 1 qt expansion that is
available from many RV supply places. I had that in our first coach and it
was almost not noticeable, not worth he price, almost the same price of a 2
gallon unit.
<
https://www.campingworld.com/shurflo-accumulator-tank-2290.html?cgid=fresh-water-pumps-accessories#start=12&cgid=maintain-your-rv%2Ffresh-water%2F fresh-water-pumps-accessories
>
J.R. Wright
GMC Great Laker
GMCGL Tech Editor
GMC Eastern States
GMCMHI
TZE Zone Restorations
78 Buskirk Custom 29.5' Stretch
75 Avion (Under going Frame up Restoration)
On Sat, Nov 9, 2019 at 11:21 AM John Shutzbaugh via Gmclist <
gmclist@list.gmcnet.org> wrote:
> On our 77 Eleganza I was able to fit a 2 gallon (or maybe only one gallon)
> tank vertically just aft of the water tank. The tanks are available at
> Home Depot, Lowes, etc. It just barely fits, and for access one needs to
> take off the deck on which the curbside dinette sat or sits if you still
> have it. It is not easy working in that space, but I think it's worth it
> as you can get 2-3 flushes and hand washes before the pump cycles. I
> charge the bladder with 20 psig air when empty.
>
> I agree with Matt, I like hearing that pump as an alarm if we aren't using
> water.
>
> John S.
> --
> John Shutzbaugh, Vacaville, CA, ncserv@aol.com;
> 77 Eleganza, bought it new, can't blame PO; and
> 78 Buskirk stretch, "What were we thinking?"
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
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Unsubscribe or Change List Options:
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| Re: [GMCnet] Recommendation for a nice quiet water pump [message #349989 is a reply to message #349983] |
Sat, 09 November 2019 18:01 |
powwerjon
Messages: 849
Registered: March 2013
Karma: -2
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Senior Member |
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I can recommend an expansion tank for your water system. I suggest the 2
gallon size and it will give you the best service possible and what I use.
Go to Ace Hardware, Lowes, Home Depot and do a search for expansion tank
and several will pop up at each site. They typically run in the $38 to
$42 +/-. DO NOT get the little black plastic 1 qt expansion that is
available from many RV supply places. I had that in our first coach and it
was almost not noticeable, not worth he price, almost the same price of a 2
gallon unit.
<
https://www.campingworld.com/shurflo-accumulator-tank-2290.html?cgid=fresh-water-pumps-accessories#start=12&cgid=maintain-your-rv%2Ffresh-water%2F fresh-water-pumps-accessories
>
J.R. Wright
GMC Great Laker
GMCGL Tech Editor
GMC Eastern States
GMCMHI
TZE Zone Restorations
78 Buskirk Custom 29.5' Stretch
75 Avion (Under going Frame up Restoration)
On Sat, Nov 9, 2019 at 11:39 AM Jim Kanomata via Gmclist <
gmclist@list.gmcnet.org> wrote:
> I’m with Matt on a pump that makes noise.
> Always shut it off when traveling as you will not hear it running when
> fittings come loose while driving.
> Randy Van Winkle came up with a switching system that make controlling the
> pump very efficiently.
> It is called the Winklers remote water pump control kit.
> Go to our sight: appliedgmcrvparts and go to search.
> Instruction sheets should be in our sight under instructions.
>
> On Sat, Nov 9, 2019 at 8:17 AM Russell Mehlenbacher via Gmclist gmclist@list.gmcnet.org> wrote:
>
>> My coach has a triplex pump and had a small shur flo accumulator
> installed.
>> I can hear it running under the bed if I listen. I felt the accumulator
>> worked as a pulse dampner, but why bother. I had bought a freight surplus
>> (discount!) RO pressure/expansion tank (4 gal) and stuffed that under the
>> bed. I pump it up as needed and shut it off. It limits water leakage in
>> case of failure and no one wakes to unexpected vibrations.
>>
>> Russ
>> Rochester Hills, Mi
>> 76 Eleganza
>>
>>
>> On Sat, Nov 9, 2019, 9:50 AM tonka6cuda6--- via Gmclist > gmclist@list.gmcnet.org> wrote:
>>
>>> Matt Colie wrote on Sat, 09 November 2019 09:37
>>>> 6cuda6 wrote on Sat, 09 November 2019 09:17
>>>> > Seeing as how im on a system component upgrade kick (plus its
> inside
>>> work so i can stay warm...lol) i may as well replace the noisy water
> pump
>>>> > in this rig.....need recommendation please and thanks.
>>>>
>>>> Rich,
>>>>
>>>> I understand why you might want this, but think about it. All of the
>>> new three and four diaphragm pumps are relatively quiet. While I will
>> admit
>>>> that the OE Par (luga-luga) pumps can be annoying, a silent pump may
>>> serve you poorly. In my world, many have found that a pump so quiet it
>>> could
>>>> not be heard undersail was a disaster. Taps often vibrate open and
> it
>>> doesn't take much or long to pump a quantity of the potable water
>>> overboard.
>>>> While potable water is not as precious to an RV as it might be on
> tidal
>>> water, it is still a serious consideration. Oftimes I, have been
>> sitting in
>>>> a salon enjoying company when the potable pump would rattle. This
>>> causes an immediate reaction as some jump to find the dripping tap.
>>>>
>>>> If you are trying to have the pump not make noise during nighttime
>>> flush, consider included a small bladder tank (head tank, expansion
>> tank) in
>>>> the system. 26s have the room to accommodate such. Then turn the
> pump
>>> off for the night.
>>>>
>>>> Matt
>>>
>>> Thanks for the insight Matt....didnt think a head tank was a viable
>>> install.
>>> --
>>> Rich Mondor,
>>>
>>> Brockville, ON
>>>
>>> 77 Hughes 2600
>>>
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
>>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
_______________________________________________
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| Re: Recommendation needed for a nice quiet water pump [message #349993 is a reply to message #349976] |
Sat, 09 November 2019 23:27 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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Senior Member |
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I got mine from Home Depot over 10 years ago for around $22.00.
Look for pressure tanks for wells or water based home heating systems. Be sure to set the tank air pressure to match the coach water pump turn on pressure in your coach. Take that measured pressure and set the empty take pressure 2 PSI below the turn on pressure. Set it too low and the tank will be water logged. Set it too high and the tank will not store much water.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: Recommendation needed for a nice quiet water pump [message #349994 is a reply to message #349976] |
Sat, 09 November 2019 23:28 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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Senior Member |
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I got mine from Home Depot over 10 years ago for around $22.00.
Look for pressure tanks for wells or water based home heating systems. Be sure to set the tank air pressure to match the coach water pump turn on pressure in your coach. Take that measured pressure and set the empty take pressure 2 PSI below the turn on pressure. Set it too low and the tank will be water logged. Set it too high and the tank will not store much water.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: Recommendation needed for a nice quiet water pump [message #349995 is a reply to message #349976] |
Sat, 09 November 2019 23:28 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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Senior Member |
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I got mine from Home Depot over 10 years ago for around $22.00.
Look for pressure tanks for wells or water based home heating systems. Be sure to set the tank air pressure to match the coach water pump turn on pressure in your coach. Take that measured pressure and set the empty take pressure 2 PSI below the turn on pressure. Set it too low and the tank will be water logged. Set it too high and the tank will not store much water.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: Recommendation needed for a nice quiet water pump [message #350016 is a reply to message #350009] |
Sun, 10 November 2019 17:10 |
6cuda6
Messages: 975
Registered: June 2019
Karma: -6
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Senior Member |
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Matt Colie wrote on Sun, 10 November 2019 15:346cuda6 wrote on Sun, 10 November 2019 12:01I have a look at how this thing is plumbed were the pump is and get a rough idea how big a tank i can get in there.....thanks folks your suggestions and recommendations make good sense.
Rich,
Don't work too hard at it. The fact is that the tank can (literally) be added anyplace on the cold water line.
Matt
Very true....
Rich Mondor,
Brockville, ON
77 Hughes 2600
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| Re: [GMCnet] Recommendation for a nice quiet water pump [message #350024 is a reply to message #349989] |
Mon, 11 November 2019 06:27 |
Rich Kinas
Messages: 113
Registered: July 2019
Karma: 1
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Senior Member |
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Since I am still in the refurbishing honeymoon stage of GMC ownership I
have not had the luxury of listening to the water pump at night during
travels. So my question is how is the expansion tank utilized in the water
system, to prevent pump cycling?
Rich
On Sat, Nov 9, 2019 at 7:02 PM John Wright via Gmclist <
gmclist@list.gmcnet.org> wrote:
> I can recommend an expansion tank for your water system. I suggest the 2
> gallon size and it will give you the best service possible and what I use.
>
> Go to Ace Hardware, Lowes, Home Depot and do a search for expansion tank
> and several will pop up at each site. They typically run in the $38 to
> $42 +/-. DO NOT get the little black plastic 1 qt expansion that is
> available from many RV supply places. I had that in our first coach and it
> was almost not noticeable, not worth he price, almost the same price of a 2
> gallon unit.
>
>
> https://www.campingworld.com/shurflo-accumulator-tank-2290.html?cgid=fresh-water-pumps-accessories#start=12&cgid=maintain-your-rv%2Ffresh-water%2F fresh-water-pumps-accessories
>>
>
> J.R. Wright
> GMC Great Laker
> GMCGL Tech Editor
> GMC Eastern States
> GMCMHI
> TZE Zone Restorations
> 78 Buskirk Custom 29.5' Stretch
> 75 Avion (Under going Frame up Restoration)
>
>
>
> On Sat, Nov 9, 2019 at 11:39 AM Jim Kanomata via Gmclist gmclist@list.gmcnet.org> wrote:
>
>> I’m with Matt on a pump that makes noise.
>> Always shut it off when traveling as you will not hear it running when
>> fittings come loose while driving.
>> Randy Van Winkle came up with a switching system that make controlling
> the
>> pump very efficiently.
>> It is called the Winklers remote water pump control kit.
>> Go to our sight: appliedgmcrvparts and go to search.
>> Instruction sheets should be in our sight under instructions.
>>
>> On Sat, Nov 9, 2019 at 8:17 AM Russell Mehlenbacher via Gmclist > gmclist@list.gmcnet.org> wrote:
>>
>>> My coach has a triplex pump and had a small shur flo accumulator
>> installed.
>>> I can hear it running under the bed if I listen. I felt the accumulator
>>> worked as a pulse dampner, but why bother. I had bought a freight
> surplus
>>> (discount!) RO pressure/expansion tank (4 gal) and stuffed that under
> the
>>> bed. I pump it up as needed and shut it off. It limits water leakage
> in
>>> case of failure and no one wakes to unexpected vibrations.
>>>
>>> Russ
>>> Rochester Hills, Mi
>>> 76 Eleganza
>>>
>>>
>>> On Sat, Nov 9, 2019, 9:50 AM tonka6cuda6--- via Gmclist >> gmclist@list.gmcnet.org> wrote:
>>>
>>>> Matt Colie wrote on Sat, 09 November 2019 09:37
>>>> > 6cuda6 wrote on Sat, 09 November 2019 09:17
>>>> > > Seeing as how im on a system component upgrade kick (plus its
>> inside
>>>> work so i can stay warm...lol) i may as well replace the noisy water
>> pump
>>>> > > in this rig.....need recommendation please and thanks.
>>>> >
>>>> > Rich,
>>>> >
>>>> > I understand why you might want this, but think about it. All of
> the
>>>> new three and four diaphragm pumps are relatively quiet. While I
> will
>>> admit
>>>> > that the OE Par (luga-luga) pumps can be annoying, a silent pump
> may
>>>> serve you poorly. In my world, many have found that a pump so quiet
> it
>>>> could
>>>> > not be heard undersail was a disaster. Taps often vibrate open and
>> it
>>>> doesn't take much or long to pump a quantity of the potable water
>>>> overboard.
>>>> > While potable water is not as precious to an RV as it might be on
>> tidal
>>>> water, it is still a serious consideration. Oftimes I, have been
>>> sitting in
>>>> > a salon enjoying company when the potable pump would rattle. This
>>>> causes an immediate reaction as some jump to find the dripping tap.
>>>> >
>>>> > If you are trying to have the pump not make noise during nighttime
>>>> flush, consider included a small bladder tank (head tank, expansion
>>> tank) in
>>>> > the system. 26s have the room to accommodate such. Then turn the
>> pump
>>>> off for the night.
>>>> >
>>>> > Matt
>>>>
>>>> Thanks for the insight Matt....didnt think a head tank was a viable
>>>> install.
>>>> --
>>>> Rich Mondor,
>>>>
>>>> Brockville, ON
>>>>
>>>> 77 Hughes 2600
>>>>
>>>> _______________________________________________
>>>> GMCnet mailing list
>>>> Unsubscribe or Change List Options:
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Rich Kinas
1976 Elaganza II
Orlando, FL
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| Re: [GMCnet] Recommendation for a nice quiet water pump [message #350029 is a reply to message #350024] |
Mon, 11 November 2019 09:28 |
powwerjon
Messages: 849
Registered: March 2013
Karma: -2
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Senior Member |
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Rich,
The expansion tanks work by providing a volume of water depending on capacity under pressure to your system. The tank has a blatter inside that has pressurized air between the blatter and the inside of the metal tank. This air pressure is typically set at the factory at a certain pressure, but can be adjusted if necessary. The pump runs to fill the blatter with water and pumps until in reaches shutoff pressure, typically 45 to 50 psig. That means that you have water under pressure in the expansion tank. When you turn on your faucet you draw water out of the system under pressure (45 to 50 psig) until the expansion tank pressure drops to the start set point of the pump and the process start all over again. In a 2 gal expansion tank you typically get a gallon plus before the pump cycles again. Clear as mud.
J.R. Wright
GMC Great Laker MHC
GMCGL Tech Editor
GMC Eastern States Charter Member
GMCMI
78 GMC Buskirk 29.5’ Stretch
75 GMC Avion (Under Reconstruction)
Michigan
> On Nov 11, 2019, at 7:27 AM, Rich Kinas via Gmclist wrote:
>
> Since I am still in the refurbishing honeymoon stage of GMC ownership I
> have not had the luxury of listening to the water pump at night during
> travels. So my question is how is the expansion tank utilized in the water
> system, to prevent pump cycling?
>
> Rich
>
> On Sat, Nov 9, 2019 at 7:02 PM John Wright via Gmclist gmclist@list.gmcnet.org> wrote:
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| Re: [GMCnet] Recommendation for a nice quiet water pump [message #350030 is a reply to message #350029] |
Mon, 11 November 2019 10:14 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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Using a steel tank for drinking water is not too desirable as the oxidation
by product Will get into the Fluid.
Use SS or plastic rated for drinking water.
On Mon, Nov 11, 2019 at 7:29 AM John Wright via Gmclist <
gmclist@list.gmcnet.org> wrote:
> Rich,
> The expansion tanks work by providing a volume of water depending on
> capacity under pressure to your system. The tank has a blatter inside that
> has pressurized air between the blatter and the inside of the metal tank.
> This air pressure is typically set at the factory at a certain pressure,
> but can be adjusted if necessary. The pump runs to fill the blatter with
> water and pumps until in reaches shutoff pressure, typically 45 to 50
> psig. That means that you have water under pressure in the expansion
> tank. When you turn on your faucet you draw water out of the system under
> pressure (45 to 50 psig) until the expansion tank pressure drops to the
> start set point of the pump and the process start all over again. In a 2
> gal expansion tank you typically get a gallon plus before the pump cycles
> again. Clear as mud.
>
> J.R. Wright
> GMC Great Laker MHC
> GMCGL Tech Editor
> GMC Eastern States Charter Member
> GMCMI
> 78 GMC Buskirk 29.5’ Stretch
> 75 GMC Avion (Under Reconstruction)
> Michigan
>
>> On Nov 11, 2019, at 7:27 AM, Rich Kinas via Gmclist gmclist@list.gmcnet.org> wrote:
>>
>> Since I am still in the refurbishing honeymoon stage of GMC ownership I
>> have not had the luxury of listening to the water pump at night during
>> travels. So my question is how is the expansion tank utilized in the
> water
>> system, to prevent pump cycling?
>>
>> Rich
>>
>> On Sat, Nov 9, 2019 at 7:02 PM John Wright via Gmclist > gmclist@list.gmcnet.org> wrote:
>
>
> _______________________________________________
> GMCnet mailing list
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> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
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--
Jim Kanomata
Applied/GMC, Newark,CA
jimk@appliedairfilters.com
http://www.appliedgmcrvparts.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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| Re: [GMCnet] Recommendation for a nice quiet water pump [message #350035 is a reply to message #350030] |
Mon, 11 November 2019 13:08 |
powwerjon
Messages: 849
Registered: March 2013
Karma: -2
|
Senior Member |
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The only thing touching the water in the expansion tank is the rubber bladder, the steel shell is providing containment for the air to provide pressure on the bladder, no water touches the sheet shell. As for water storage tanks, I have a SS tank for water storage in the stretch and most all of the GMC coaches have the clear polypropylene plastic tanks.
JR Wright
Michigan
> On Nov 11, 2019, at 11:14 AM, Jim Kanomata via Gmclist wrote:
>
> Using a steel tank for drinking water is not too desirable as the oxidation
> by product Will get into the Fluid.
> Use SS or plastic rated for drinking water.
>
> On Mon, Nov 11, 2019 at 7:29 AM John Wright via Gmclist gmclist@list.gmcnet.org> wrote:
>
>> Rich,
>> The expansion tanks work by providing a volume of water depending on
>> capacity under pressure to your system. The tank has a blatter inside that
>> has pressurized air between the blatter and the inside of the metal tank.
>> This air pressure is typically set at the factory at a certain pressure,
>> but can be adjusted if necessary. The pump runs to fill the blatter with
>> water and pumps until in reaches shutoff pressure, typically 45 to 50
>> psig. That means that you have water under pressure in the expansion
>> tank. When you turn on your faucet you draw water out of the system under
>> pressure (45 to 50 psig) until the expansion tank pressure drops to the
>> start set point of the pump and the process start all over again. In a 2
>> gal expansion tank you typically get a gallon plus before the pump cycles
>> again. Clear as mud.
>>
>> J.R. Wright
>> GMC Great Laker MHC
>> GMCGL Tech Editor
>> GMC Eastern States Charter Member
>> GMCMI
>> 78 GMC Buskirk 29.5’ Stretch
>> 75 GMC Avion (Under Reconstruction)
>> Michigan
>>
>>> On Nov 11, 2019, at 7:27 AM, Rich Kinas via Gmclist > gmclist@list.gmcnet.org> wrote:
>>>
>>> Since I am still in the refurbishing honeymoon stage of GMC ownership I
>>> have not had the luxury of listening to the water pump at night during
>>> travels. So my question is how is the expansion tank utilized in the
>> water
>>> system, to prevent pump cycling?
>>>
>>> Rich
>>>
>>> On Sat, Nov 9, 2019 at 7:02 PM John Wright via Gmclist >> gmclist@list.gmcnet.org> wrote:
>>
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
> --
> Jim Kanomata
> Applied/GMC, Newark,CA
> jimk@appliedairfilters.com
> http://www.appliedgmcrvparts.com
> 1-800-752-7502
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
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