Home » Public Forums » GMCnet » Holding Tank Capacities (Question on holding Tank Capacities for 78 Royale)
| Holding Tank Capacities [message #220495] |
Fri, 30 August 2013 09:38  |
Bob S.
Messages: 143
Registered: October 2012
Location: Rapid City, SD
Karma: 2
|
Senior Member |
|
|
After dreaming of owning a GMC since high school(38 years), I finally bought a '78 Royale with a rear bath. That was about 10 months ago,and I have been remodeling the interior. Since then, I have been lurking on this forum and skimming off all the valuable information that is provided. The one thing that I can't seem to find is the capacity of the fresh water holding tank. It is located behind the bathroom sink and toilet which prevents me from measuring it and figuring the capacity mathematically. If someone would share this info with me I would sure appreciate it. Thanks to all who have contributed to this forum and kept my dream from becoming a nightmare.
Bob and Pam Schilling
Rapid City, SD
"78 Royale
|
|
|
|
| Re: Holding Tank Capacities [message #220510 is a reply to message #220495] |
Fri, 30 August 2013 11:07  |
A Hamilto
Messages: 4508
Registered: April 2011
Karma: 39
|
Senior Member |
|
|
| Bob S. wrote on Fri, 30 August 2013 09:38 |
After dreaming of owning a GMC since high school(38 years), I finally bought a '78 Royale with a rear bath. That was about 10 months ago,and I have been remodeling the interior. Since then, I have been lurking on this forum and skimming off all the valuable information that is provided. The one thing that I can't seem to find is the capacity of the fresh water holding tank. It is located behind the bathroom sink and toilet which prevents me from measuring it and figuring the capacity mathematically. If someone would share this info with me I would sure appreciate it. Thanks to all who have contributed to this forum and kept my dream from becoming a nightmare.
|
Bob,
If you haven't already done so, download the Maintenance and Operating manuals for you GMC. The capacities and specifications are in one or both.
I have "heard" 35 gallons, and I have "heard" 40 gallons, but don't know which is correct. It may vary from year to year, or by 23' to 26', or by upfitter. Check the appropriate manual. They can be downloaded from here
http://www.bdub.net/factory-manuals.html
or here
http://www.bdub.net/manuals/
|
|
|
|
| Re: [GMCnet] Holding Tank Capacities [message #220538 is a reply to message #220510] |
Fri, 30 August 2013 13:24 |
Emery Stora
Messages: 959
Registered: January 2011
Karma: 4
|
Senior Member |
|
|
However, Bob said he had a Royale which was made by Coachman with a Transmode made by GM.
It did not have a holding tank in it from GM. So the GMC Maintenance and Ownwrs manuals do not apply to a lot of the house side things that GM put into the vehicles they finished as GMC Motorhomes.
The GMC Transmode manual has no coverage of internal furnishing.
So , unless he can get a Coachman operators manual he will have to get the information from another Royale owner that has the same model.
Billy has a 1978 Coachman manual that shows the waste tank at 23 gallons and the gray water at 12 gallons (16 gallons for the 26' side bath). But, I don't know if that applies to other years
Emery Stora
77 Kingsley
Frederick, CO
On Aug 30, 2013, at 10:07 AM, "A." <markbb1@netzero.com> wrote:
>
>
> Bob S. wrote on Fri, 30 August 2013 09:38
>> After dreaming of owning a GMC since high school(38 years), I finally bought a '78 Royale with a rear bath. That was about 10 months ago,and I have been remodeling the interior. Since then, I have been lurking on this forum and skimming off all the valuable information that is provided. The one thing that I can't seem to find is the capacity of the fresh water holding tank. It is located behind the bathroom sink and toilet which prevents me from measuring it and figuring the capacity mathematically. If someone would share this info with me I would sure appreciate it. Thanks to all who have contributed to this forum and kept my dream from becoming a nightmare.
> Bob,
>
> If you haven't already done so, download the Maintenance and Operating manuals for you GMC. The capacities and specifications are in one or both.
>
> I have "heard" 35 gallons, and I have "heard" 40 gallons, but don't know which is correct. It may vary from year to year, or by 23' to 26', or by upfitter. Check the appropriate manual. They can be downloaded from here
>
> http://www.bdub.net/factory-manuals.html
>
> or here
> http://www.bdub.net/manuals/
>
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
|
|
|
|
| Re: Holding Tank Capacities [message #220555 is a reply to message #220495] |
Fri, 30 August 2013 16:00 |
Bob S.
Messages: 143
Registered: October 2012
Location: Rapid City, SD
Karma: 2
|
Senior Member |
|
|
Thank you for your help. I have all the manuals and have looked through them but can't seem to find the info I'm looking for. I'll check again. Once again thank you for your responses.
Bob and Pam Schilling
Rapid City, SD
"78 Royale
|
|
|
|
|
|
|
|
|
|
| Re: [GMCnet] Holding Tank Capacities [message #220775 is a reply to message #220751] |
Sun, 01 September 2013 16:57 |
Bruce Hart
Messages: 1501
Registered: October 2011
Location: La Grange, Wyoming
Karma: 5
|
Senior Member |
|
|
Time how long it takes to fill a five gallon bucket, than time how long it
takes to fill your tank.
On Sun, Sep 1, 2013 at 11:15 AM, Emery Stora <emerystora@mac.com> wrote:
> Bob
> check page 31 o the Coachmen Owners Manual 1978.
> It shows 40 gallons for the water tank on all models.
> I had previously advised the holding tank capacities in an earlier email.
>
> The pdf file of that manual is too large for me to email it to you.
> You can download it from Billy Massey's site.
> http://www.bdub.net/manuals/index.html
>
> Emery Stora
>
> On Aug 30, 2013, at 3:00 PM, Bob Schilling wrote:
>
> >
> >
> > Thank you for your help. I have all the manuals and have looked through
> them but can't seem to find the info I'm looking for. I'll check again.
> Once again thank you for your responses.
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Bruce Hart
1976 Palm Beach
Milliken, Co
GMC=Got More Class
51st State? Northern Colorado!
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Bruce Hart
1976 Palm Beach
1977 28' Kingsley
La Grange, Wyoming
|
|
|
|
|
|
| Re: [GMCnet] Holding Tank Capacities [message #220778 is a reply to message #220775] |
Sun, 01 September 2013 17:09 |
emerystora
Messages: 4442
Registered: January 2004
Karma: 13
|
Senior Member |
|
|
Why should he bother to do that?
Don't you believe the message that you have quoted from me that its 40 gallons
Emery Stora
On Sep 1, 2013, at 3:57 PM, Bruce Hart wrote:
> Time how long it takes to fill a five gallon bucket, than time how long it
> takes to fill your tank.
>
>
> On Sun, Sep 1, 2013 at 11:15 AM, Emery Stora <emerystora@mac.com> wrote:
>
>> Bob
>> check page 31 o the Coachmen Owners Manual 1978.
>> It shows 40 gallons for the water tank on all models.
>> I had previously advised the holding tank capacities in an earlier email.
>>
>> The pdf file of that manual is too large for me to email it to you.
>> You can download it from Billy Massey's site.
>> http://www.bdub.net/manuals/index.html
>>
>> Emery Stora
>>
>> On Aug 30, 2013, at 3:00 PM, Bob Schilling wrote:
>>
>>>
>>>
>>> Thank you for your help. I have all the manuals and have looked through
>> them but can't seem to find the info I'm looking for. I'll check again.
>> Once again thank you for your responses.
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
>>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>
>
>
>
> --
> Bruce Hart
> 1976 Palm Beach
> Milliken, Co
> GMC=Got More Class
> 51st State? Northern Colorado!
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
|
|
|
|
| Re: Holding Tank Capacities [message #220929 is a reply to message #220495] |
Mon, 02 September 2013 19:37 |
Bob S.
Messages: 143
Registered: October 2012
Location: Rapid City, SD
Karma: 2
|
Senior Member |
|
|
Thanks to all who posted replys to my question. I had seen the Coachman manual that listed the fresh water tank with a 40 gallon capacity. I doubted that this was the case because we have used it twice and ran out of fresh water (with frugal use) in a day and a half. We also noticed that the black water tank was full at the same time.
Well, this week end we figured out what is happening. At about 3:00 A.M. my wife woke up and heard water trickling- she got up to investigate and found the toilet bowl about a half inch from over flowing. Evidently our toilet valve does not completey shut off and contiues to leak into our black water tank. Our black water tank was completely full also so I had to get dressed run outside and shut off the city water we were hooked up to. As soon as the sun came up I emptied the holding tanks and the potential disaster was averted. I continued checking it all week end and ended up emptying the holding tanks 5 times which means I probalby have the cleanest tanks in town.
Looks like its time for a new toilet. Boy these GMC's are sure full of fun surprises. Thanks again to all for your help...can't wait to see what happens next. Bob Schilling
Bob and Pam Schilling
Rapid City, SD
"78 Royale
|
|
|
|
| Re: Holding Tank Capacities [message #220959 is a reply to message #220929] |
Mon, 02 September 2013 21:52 |
Carl S.
Messages: 4186
Registered: January 2009
Location: Tucson, AZ.
Karma: 13
|
Senior Member |
|
|
| Bob S. wrote on Mon, 02 September 2013 17:37 |
Thanks to all who posted replys to my question. I had seen the Coachman manual that listed the fresh water tank with a 40 gallon capacity. I doubted that this was the case because we have used it twice and ran out of fresh water (with frugal use) in a day and a half. We also noticed that the black water tank was full at the same time.
Well, this week end we figured out what is happening. At about 3:00 A.M. my wife woke up and heard water trickling- she got up to investigate and found the toilet bowl about a half inch from over flowing. Evidently our toilet valve does not completey shut off and contiues to leak into our black water tank. Our black water tank was completely full also so I had to get dressed run outside and shut off the city water we were hooked up to. As soon as the sun came up I emptied the holding tanks and the potential disaster was averted. I continued checking it all week end and ended up emptying the holding tanks 5 times which means I probalby have the cleanest tanks in town.
Looks like its time for a new toilet. Boy these GMC's are sure full of fun surprises. Thanks again to all for your help...can't wait to see what happens next. Bob Schilling
|
Bob,
On our trip in July, we experienced the same problem with the toilet slowly filling up with water. Depending on the toilet you have (I replaced our original with a SeaLand 510 the first year we had the coach), you can get a new cartridge for the flush valve. It will fix the problem for a fraction of the cost of a new toilet. Ten minute job and no more leaky toilet.
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
|
|
|
|
| Re: [GMCnet] Holding Tank Capacities [message #227684 is a reply to message #220565] |
Wed, 30 October 2013 00:50 |
mickeysss
Messages: 1476
Registered: January 2012
Karma: 0
|
Senior Member |
|
|
one of the best posters on the net., thanks larry, mickey anaheim ca. 77 palm beach.
On Aug 30, 2013, at 3:31 PM, Larry wrote:
>
>
> Bob S. wrote on Fri, 30 August 2013 09:38
>> After dreaming of owning a GMC since high school(38 years), I finally bought a '78 Royale with a rear bath. That was about 10 months ago,and I have been remodeling the interior. Since then, I have been lurking on this forum and skimming off all the valuable information that is provided. The one thing that I can't seem to find is the capacity of the fresh water holding tank. It is located behind the bathroom sink and toilet which prevents me from measuring it and figuring the capacity mathematically. If someone would share this info with me I would sure appreciate it. Thanks to all who have contributed to this forum and kept my dream from becoming a nightmare.
>
> My 78 Royale side bath has a 40 gal fresh water tank. When we travel, and use water, the holding tanks are close to full when the fresh water is empty. I took the grey/black water separation out so that both tanks are tied together with the macerator between them. JFWIW
>
> --
> Larry :)
> 78 Royale w/500 Caddy
> Menomonie, WI.
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
|
|
|
|
| Re: Holding Tank Capacities [message #227731 is a reply to message #220929] |
Wed, 30 October 2013 11:08 |
habbyguy
Messages: 896
Registered: May 2012
Location: Mesa, AZ
Karma: 3
|
Senior Member |
|
|
| Bob S. wrote on Mon, 02 September 2013 17:37 |
Thanks to all who posted replys to my question. I had seen the Coachman manual that listed the fresh water tank with a 40 gallon capacity. I doubted that this was the case because we have used it twice and ran out of fresh water (with frugal use) in a day and a half. We also noticed that the black water tank was full at the same time.
Well, this week end we figured out what is happening. At about 3:00 A.M. my wife woke up and heard water trickling- she got up to investigate and found the toilet bowl about a half inch from over flowing. Evidently our toilet valve does not completey shut off and contiues to leak into our black water tank. Our black water tank was completely full also so I had to get dressed run outside and shut off the city water we were hooked up to. As soon as the sun came up I emptied the holding tanks and the potential disaster was averted. I continued checking it all week end and ended up emptying the holding tanks 5 times which means I probalby have the cleanest tanks in town.
Looks like its time for a new toilet. Boy these GMC's are sure full of fun surprises. Thanks again to all for your help...can't wait to see what happens next. Bob Schilling
|
That's why I never hook up to city water - well, that and the fact that the pressure can be unpredictable (and I guess I don't trust the pressure regulators that can be used). I much prefer to just fill the tank and use the electric pump. That way, I know that no matter what happens, I can't end up with more than 40 (?) gallons of water loose in my coach if something cuts loose while I'm gone. Of course, I can just flip off the water pump while I'm gone and not worry at all.
The other nice thing about using the water pump is that you will know if you have any leaks, since you'll hear the pump run occasionally.
Mark Hickey
Mesa, AZ
1978 Royale Center Kitchen
|
|
|
|
Goto Forum:
Current Time: Thu Oct 03 22:23:49 CDT 2024
Total time taken to generate the page: 0.04528 seconds
|
GMCforum
Search
Help
Register
Login
Home
