Home » Public Forums » GMCnet » [GMCnet] new water tank... wrong fittings
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| Re: [GMCnet] new water tank... wrong fittings [message #267691 is a reply to message #267689] |
Wed, 17 December 2014 07:50   |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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Call a couple of welding shops and ask if they do plastic welding or can refer you to a welder who does.
--johnny
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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| Re: [GMCnet] new water tank... wrong fittings [message #267692 is a reply to message #267689] |
Wed, 17 December 2014 09:05 |
Bob de Kruyff
Messages: 4260
Registered: January 2004
Location: Chandler, AZ
Karma: 1
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Ek_Lektro wrote on Wed, 17 December 2014 06:08Gotta love Amazon.
Arrived yesterday, and only one of the fittings is as pictured
http://www.amazon.com/gp/product/B002OVYINS/ref=oh_aui_detailpage_o05_s00?ie=UTF8&psc=1
So my question: Are there easy-enough (and reliably leak-free) ways to modify these tanks yourself, install your own fittings where you need them? (without having to buy expensive tools)
Or, might i find a local shop that'd do it for us (in Los Angeles)? Initial google searches aren't really yielding anything.
Gracias.. again!
Greg / SolarSonic / Los Angeles
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There are fittings that you can install almost any where on the tank and it is a do it yourself job. Many marine stores will have them and possibly Camping World. They are used just for what you have run into since it's almost impossible to comprehend every application. I'm sure someone here will have first hand experience.
Bob de Kruyff
78 Eleganza
Chandler, AZ
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| Re: [GMCnet] new water tank... wrong fittings [message #267693 is a reply to message #267689] |
Wed, 17 December 2014 09:26 |
Chr$
Messages: 2690
Registered: January 2004
Location: Scottsdale, AZ
Karma: 1
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X2 on plastic welder. Find a plastic fabricator in the phone book or internet. They can weld them wherever you want them in a few mins. It's Polyethylene. LA should have plenty of them.
-Chr$: Perpetual SmartAss
Scottsdale, AZ
77 Ex-Kingsley 455 SOLD!
2010 Nomad 24 Ft TT 390W PV W/MPPT, EV4010 and custom cargo door.
Photosite: Chrisc GMC:"It has Begun" TT: "The Other Woman"
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| Re: [GMCnet] new water tank... wrong fittings [message #267697 is a reply to message #267689] |
Wed, 17 December 2014 10:57 |
rcjordan
Messages: 1913
Registered: October 2012
Location: Elizabeth City, North Car...
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I'm not keen on those push-through spuds, but that's just me. A deckplate in the top for access and a bulkhead fitting is more my preference, second to a plastic welded FPT. The deckplate is handy for checking the tank, too.
SOLD 77 Royale Coachmen Side Dry Bath
76 Birchaven Coachmen Side Wet Bath
76 Eleganza
Elizabeth City, NC
[Updated on: Thu, 18 December 2014 18:52] Report message to a moderator |
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| Re: [GMCnet] rcjordan [message #267700 is a reply to message #267697] |
Wed, 17 December 2014 13:18 |
Kingsley Coach
Messages: 2691
Registered: March 2009
Location: Nova Scotia Canada
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Granted, I'm on email so I may have missed the intro here, but RC, I have
no idea what you are talking about, if you have started a new thread, or
responded to another comment under a separate heading or what's going on...
What happened?
Tks
Mike in NS
On Wed, Dec 17, 2014 at 12:57 PM, RC Jordan wrote:
>
> I'm not keen on those push-through spuds, but that's just me. A deckplate
> in the top for access and a bulkhead fitting is more my preference, second
> to a plastic welded FPT. The deckplate is handy for checking the tank,
> too.
> --
> 77 Royale Coachmen Side Dry Bath
> 76 Birchaven Coachmen Side Wet Bath
> Elizabeth City, NC
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
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--
Michael Beaton
1977 Kingsley 26-11
1977 Eleganza II 26-3
Antigonish, NS
I am not an alcoholic; alcoholics go to meetings.
I am a drunk; I go to parties !
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| Re: [GMCnet] rcjordan [message #267703 is a reply to message #267700] |
Wed, 17 December 2014 13:42 |
Kingsley Coach
Messages: 2691
Registered: March 2009
Location: Nova Scotia Canada
Karma: -34
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I was reading messages from the top down. After your post I saw:
[GMCnet] new water tank... wrong fittings*I guess this is what you were
referring to...*
Mike
On Wed, Dec 17, 2014 at 3:18 PM, Kingsley Coach
wrote:
>
> Granted, I'm on email so I may have missed the intro here, but RC, I have
> no idea what you are talking about, if you have started a new thread, or
> responded to another comment under a separate heading or what's going on...
>
> What happened?
>
> Tks
>
> Mike in NS
>
>
> On Wed, Dec 17, 2014 at 12:57 PM, RC Jordan wrote:
>>
>> I'm not keen on those push-through spuds, but that's just me. A deckplate
>> in the top for access and a bulkhead fitting is more my preference, second
>> to a plastic welded FPT. The deckplate is handy for checking the tank,
>> too.
>> --
>> 77 Royale Coachmen Side Dry Bath
>> 76 Birchaven Coachmen Side Wet Bath
>> Elizabeth City, NC
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>
>
>
> --
> Michael Beaton
> 1977 Kingsley 26-11
> 1977 Eleganza II 26-3
> Antigonish, NS
>
> I am not an alcoholic; alcoholics go to meetings.
> I am a drunk; I go to parties !
>
--
Michael Beaton
1977 Kingsley 26-11
1977 Eleganza II 26-3
Antigonish, NS
I am not an alcoholic; alcoholics go to meetings.
I am a drunk; I go to parties !
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| Re: [GMCnet] new water tank... wrong fittings [message #267705 is a reply to message #267689] |
Wed, 17 December 2014 14:22 |
drdonaldg
Messages: 35
Registered: June 2013
Location: San Rafael, CA
Karma: 1
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Is this tank the correct dimensions for your application?, looks like a generic tank. Applied GMC has replacement tanks that will fit original applications. If you are installing in a different location and need a specific size tank I would check with tank manufactures. I have used Plastic-Mart with excellent results, they have a very large selection of water tanks and will "spin" in fittings in any size and location that you request. A spin in fitting is not plastic welded and is not a bulkhead fitting, they are spun in at high speed and become an integral part of the tank. Don't forget a vent at the top of the tank.
1977 Palm Beach
TZE167V100274
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| Re: [GMCnet] new water tank... wrong fittings [message #267710 is a reply to message #267689] |
Wed, 17 December 2014 17:20 |
rcjordan
Messages: 1913
Registered: October 2012
Location: Elizabeth City, North Car...
Karma: 1
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>I was reading messages from the top down. After your post I saw: [GMCnet] new water tank... wrong fittings*I guess this is what you were
referring to...*
Yup, I replied in the forum. The thread is formatted OK, so the problem must have been a glitch in the mail server.
SOLD 77 Royale Coachmen Side Dry Bath
76 Birchaven Coachmen Side Wet Bath
76 Eleganza
Elizabeth City, NC
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| Re: [GMCnet] new water tank... wrong fittings [message #267718 is a reply to message #267710] |
Wed, 17 December 2014 19:37 |
mojoe
Messages: 319
Registered: November 2012
Location: Monroe, NC
Karma: 0
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Not sure what your problem is but if the tank looks like the one in the picture and it fits your space. You can buy a couple thread in fittings and go for it. Hole at the bottom should go to water pump. threaded corner hole to over flow and large hole is the fill.. Buy all fittings at Lowes or Home Depot.
Joe Kemenczky..
1975 Eleganza ll " Odie " 75,000 miles..
"When I was younger, I could remember anything, whether it had happened or not." - Mark Twain.
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| Re: [GMCnet] new water tank... wrong fittings [message #267730 is a reply to message #267710] |
Wed, 17 December 2014 21:22 |
Rob
Messages: 651
Registered: November 2013
Location: Victoria, BC
Karma: 3
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When you posted your reply (#267697), the "Title" was changed from to "Re: [GMCnet] new water tank... wrong fittings" to "rcjordan".
The "Title" on the forum is the "Subject" on the email list. So to a reader on the email list - it appears as a new thread...
Rob
Victoria, BC
76 Royale - Rear Twins/Dry Bath
On 2014-12-17, at 3:21 PM, RC Jordan wrote:
>
> Yup, I replied in the forum. The thread is formatted OK, so the problem must have been a glitch in the mail server.
>
> --
> 77 Royale Coachmen Side Dry Bath
> 76 Birchaven Coachmen Side Wet Bath
> Elizabeth City, NC
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Rob -
Victoria, BC -
76 Royale - Rear Twins/Dry Bath
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| Re: rcjordan [message #267735 is a reply to message #267732] |
Wed, 17 December 2014 23:03 |
Hal StClair
Messages: 971
Registered: March 2013
Location: Rio Rancho NM
Karma: -12
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As stated previously, these tanks use spun in fittings. A jig for each fitting is needed and a BIG router to spin them in- not something a novice should attempt. It's way to easy to melt the fitting into the tank and ruin your project. If you're not happy with the pop in fittings like Applied sells, your best bet is to bring the tanks to one of the tank manufactures' and have them install the fittings.
Just my thoughts, Hal
"I enjoy talking to you. Your mind appeals to me. It resembles my own mind, except you happen to be insane."
1977 Royale 101348,
1977 Royale 101586, Diesel powered,
1974 Eagle Bus 45',w/slideout,
Rio Rancho, NM
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| Re: [GMCnet] rcjordan [message #267747 is a reply to message #267735] |
Thu, 18 December 2014 05:39 |
Jim at the Co-op
Messages: 291
Registered: May 2014
Location: Orlando Florida
Karma: 2
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Yes, fittings into the plastic fresh water and holding tanks are impossible
to spin in without the tools. When we redesign the sewer tank as in RC's
coach -- we took out the original 2 tank system in favor of an original GM
floorplan single rotomolded tank @ the only way to set it up is with the
"pop in" compression fittings. It's important to make everything fit well
using the compression fittings. But when they are put in well, they work
pretty well. We have had our challenges fitting them in on RC -- first the
3" pipe was off a little, fixed that which made the smaller pipe not fit
but I feel with a little adjustment we can solve the problem. I do wish we
didn't have to use compression fittings but as I said, done properly they
will work well -- and RC's will work well when we are done.
Remember the phrase that fits working with these coaches, "It almost fits
perfect..."
On Thu, Dec 18, 2014 at 12:03 AM, Hal StClair
wrote:
>
> As stated previously, these tanks use spun in fittings. A jig for each
> fitting is needed and a BIG router to spin them in- not something a novice
> should attempt. It's way to easy to melt the fitting into the tank and
> ruin your project. If you're not happy with the pop in fittings like Applied
> sells, your best bet is to bring the tanks to one of the tank
> manufactures' and have them install the fittings.
> Just my thoughts, Hal
> --
> 1977 Royale 101348,
>
> 1977 Royale 101586,
>
> 1974 Eagle Bus 45',w/slideout
> _______________________________________________
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> Unsubscribe or Change List Options:
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| Re: [GMCnet] new water tank... wrong fittings [message #267750 is a reply to message #267730] |
Thu, 18 December 2014 05:53 |
Jim at the Co-op
Messages: 291
Registered: May 2014
Location: Orlando Florida
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OK, now I too know where this thread started. Remember the saying "It
almost fits perfect", well not to throw water on the party but if it will
fit in the hole I would adapt your lines to fit the tank. That is a
universal tank and thus the plastic is very thin. You need to make 1/2"
plywood support panels to keep the tank from ballooning out. It's also so
thin that anyone plastic welding it will be hard pressed to not blow holes
into it. I would not try that and I would also not try an "easy" fitting.
The fresh water tank sees water all the time. Compression fittings on the
top of a holding tank does not. You can block out fumes escaping with
compression fittings on holding tanks but not constant fluid pressure. I
have used those easy fittings on a tank like this but with no guaranty it
would hold long term. As much electronics as you have in your coach, I
would not put a potential leaker tank in there with that stuff.
That is the wrong tank for a GMC, but maybe you can adapt it. We use a
different universal tank, cost is @ the same, that has the inlet at a
corner and enough outlet fittings we have to plug off 1 or 2. Again, we
make side support panels and strap it together. The original totally
correct tank is a little more cost but as you will probably find, labor to
refit the tank will end up costing you more than if you would have talked
to one of us and gotten the correct one. We're buds and I have helped you
with information for many years, wish you would have called me on this
one. Sorry man but that's the short of it.
So the sort of all that verbage is --- adapt your coach now to that tank
On Wed, Dec 17, 2014 at 10:22 PM, Rob wrote:
>
> When you posted your reply (#267697), the "Title" was changed from to "Re:
> [GMCnet] new water tank... wrong fittings" to "rcjordan".
>
> The "Title" on the forum is the "Subject" on the email list. So to a
> reader on the email list - it appears as a new thread...
>
> Rob
> Victoria, BC
> 76 Royale - Rear Twins/Dry Bath
>
> On 2014-12-17, at 3:21 PM, RC Jordan wrote:
>>
>> Yup, I replied in the forum. The thread is formatted OK, so the problem
> must have been a glitch in the mail server.
>>
>> --
>> 77 Royale Coachmen Side Dry Bath
>> 76 Birchaven Coachmen Side Wet Bath
>> Elizabeth City, NC
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
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| Re: [GMCnet] new water tank... wrong fittings [message #267768 is a reply to message #267689] |
Thu, 18 December 2014 09:48 |
Ek_Lektro
Messages: 167
Registered: March 2011
Karma: 2
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> That is the wrong tank for a GMC, but maybe you can adapt it. We use a
> different universal tank, cost is @ the same, that has the inlet at a
> corner and enough outlet fittings we have to plug off 1 or 2.
hey Jim, and everybody else chiming in...
I think i should clarify here: Ordering this tank was not for the purposes of saving a few bucks...
Instead, it was to get 26 gallons into a very confined space. We don't need 35+ gallons
onboard the custom 21 footer. I checked several options, and this tank was one that would fit our space
perfectly. Unfortunately the fill fitting was NOT where it was in the picture, rather jutting out from one
of the top sides.. which would require the water fill tube shooting right through the super-confined spaces of our bathroom arrangement.
I understand that the 2 bottom fittings are under lots of pressure, and yes, it would probably not be wise
to put a new lower fitting into one of these less-than-premium tanks... and we don't really need to.
But the top fill...? which is not really under much "pressure" beyond the garden hose filling up, and the usual sloshing around...? hmmm... might be do-able in a pinch?
But anyway, first, since Amazon is return-able; i guess i'm going to call Ronco and see if by any chance they have a tank close to our dimensions, and could install with our fittings requirements.
BTW: The electronics of the coach have all been designed to be up at least 9 inches up off the floorboards, so any spillage shy of a tsunami won't cause any damage. Years of "experience" in the trenches has us designing this one to be a beach-proof and Burning Man proof as possible!
> these tanks use spun in fittings. A jig for each
> fitting is needed and a BIG router to spin them in- not something a novice
> should attempt. It's way to easy to melt the fitting into the tank and
> ruin your project.
That's what i had heard, but i was hoping for otherwise!
OK, thanks everybody, cheers
Greg / SolarSonic / Los Angeles
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| Re: [GMCnet] rcjordan [message #267774 is a reply to message #267731] |
Thu, 18 December 2014 10:43 |
Rob
Messages: 651
Registered: November 2013
Location: Victoria, BC
Karma: 3
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The system that runs the mail server side of the list simply forwards what is sent to it from the forum.
Your reply (quoted below) also has the incorrect "Subject/Title" associated with it - both on the forum and in the mail list. My first reply had the correct "Subject/Title"...
Since I replied to your post (with the incorrect Subject/Title) - mine also has the incorrect one now... As do several others - regardless of whether the reply originated from the forum or email.
Rob
Victoria, BC
76 Royale - Rear Twins/Dry Bath
On 2014-12-17, at 7:45 PM, RC Jordan wrote:
> Mailserver must have burped. The 2nd forum post in this thread kept the thread title as email subject.
> --
> 77 Royale Coachmen Side Dry Bath
> 76 Birchaven Coachmen Side Wet Bath
> Elizabeth City, NC
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Rob -
Victoria, BC -
76 Royale - Rear Twins/Dry Bath
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