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Re: [GMCnet] Pondering a Poo Problem [message #125079] Sun, 08 May 2011 12:24
KB is currently offline  KB   United States
Messages: 1262
Registered: September 2009
Karma:
Senior Member
Thanks Dennis. Sounds like I won't be able to improve the clearance any
because the problem isn't the down pipe, it's the fitting on the tank itself
combined with the shallowness of the tank. Oh well. Guess we'll just have
to use a lot more water and live with it.

Thanks very much for checking this. Saved me a lot of unpleasant effort.

Karen
1973 23'
1975 26'


>
>>From the toilet flange face to the bottom of the input pipe is approx 7 3/4 inches on my coach. But the end of the pipe stops 1/4 inch short of the threaded fitting in the tank. There is apporx 2 3/4 inches from the bottom of the fitting to the bottom of the tank. (I think this compares to the 2 1/2 inch you measured.) It is approx 10 3/4 inches from the flange face to the bottom of the tank. The top of the tank can move up and down as you install the fitting so +/- a 1/4 inch is not surprising.
>
> http://www.gmcmhphotos.com/photos/showphoto.php?photo=39156&title=gmc-tank-and-cats-003&cat=4620
>
> And again here is the photo of my black tank and the threaded fitting.
>
> http://www.gmcmhphotos.com/photos/showphoto.php?photo=31395&title=0053&cat=4620
>
> Sounds like yours may be close to typical.
>
> If you have not checked the sink and shower drains into the tank on your 73 you may want to do so. At that time GM was using a steel nipple into the top of the tank -- these often rust away and cause major leaks.

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Karen 1975 26' San Jose, CA
 
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