GMCforum
For enthusiast of the Classic GMC Motorhome built from 1973 to 1978. A web-based mirror of the GMCnet mailing list.
Home » Public Forums » GMCnet » Need plumbing advice, please?
Re: Need plumbing advice, please? [message #328546 is a reply to message #328537] Tue, 23 January 2018 14:50 Go to previous message
GMC Jimmy is currently offline  GMC Jimmy   Canada
Messages: 199
Registered: September 2016
Location: Niagara, Ontario
Karma:
Senior Member
Thanks for the ideas and suggestions fellows.

Initially my thought was a venting issue but after adding the second vent pipe didn't resolve the water backing up into the shower I wondered if it had something to do with direct venting to the atmosphere.

Ken H indicates that venting isn't the likely cause of my problem although it may cause a small amount of water not the amount I'm experiencing. So I need to look at other options like snaking the drains again in case it is a blockage of some type.

James, I'm quite certain I have two tanks and the main drain pipe services the lounge sink, bathroom sink and the shower.

Dave, I believe I have two tanks & two drain valves (one for each tank). Last summer, assuming the tanks were empty, (the fellow who did my per-purchase inspection confirmed both tanks were empty) I decided to run water into both the grey tank via the lounge & bathroom sink as well as the black tank via the toilet. When I pulled 1st the black dump valve I got what I expected, very little liquid. The same with the grey tank, only what limited amounts of water I ran through appeared to exit via the main dump pipe.

You could clearly see the result of opening each valve. Maybe I need to repeat this exercise, fill my water tank and empty 50% of it into each tank then empty each tank separately to try and identify the amount of water exiting.

The toilet appears to dump directly into the black tank and it looks like the main drain pipe connects the lounge, bathroom and shower. I will try and get some links to photos for you to look at.

In the meantime here is a quick schematic I just drew up giving you an idea of my set up... http://www.gmcmhphotos.com/photos/my-75-royale/p64489-plumbing-schem-of-gmc.html

Thanks again,
Mike

Report message to a moderator

[Message index]
 
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Previous Topic: [GMCnet] FITECH Mystery solved
Next Topic: Bullitthead re bath door repair
Goto Forum:
  


Current Time: Tue May 07 08:57:09 CDT 2024

Total time taken to generate the page: 0.00731 seconds
.:: Contact :: Home ::.

Powered by: FUDforum 3.1.1.
Copyright ©2001-2021 FUDforum Bulletin Board Software