Thetford toilet issue

[Rene T]

    One foot column of water equals .433 psi and one inch column of mercury equals .49 psi .  Figures we had to use back when I had a J O B.

So that would mean if the top of the vent pipe was about 8' above the tank, then I was pressurizing the tank about 4 PSI more than the factory tested the tank. No wonder they don't test them at a higher pressure. They would most likely blow everytime.
Thanks Will.

 

[martin2340]

Thanks for all of your replied as I plan to try and cut it off tomorrow. As far as the water travelling up the pipe I have not gone on the roof but it seems I always smell a sewer type odor but can't find where it is coming from. Now I am worried more so than before.

 

[martin2340]

Well I finally got the flange off after hours of carefully cutting with a reciprocating saw and chiseling the old glue off. As it turned out it was not a screw on type. It is now in excess of 100 broken up pieces. Now I don't know if I can ever get a new one on as it is very rough as the limited space to work with and the glue still stuck on may cause some issues. I have to order a new flange and see how things go from there. I think I may have to use a thin file to try and smooth it out.
The pop I think the family heard was the screws popping out of the sub floor as it appears it separated the plywood.

 

[SargeW]

Use a Dremmel tool with a grinder/sander attachment. It should take the glue right off.

 

[martin2340]

I was able to rig up what I believe was the only option. At my local TT dealer parts department I was able to get a sewer adapter that fit perfectly inside the existing downtube and it was threaded on top. I then found a closet flange with an inside thread pattern, screwed the 2 together, dropped them into the downtube and screwed down the closet flange. I used a little pipe dope around the top of the tube just in case and everything now works perfectly.
Again I wanted to thank every one for your suggestions.
Joe

 

[SargeW]

Nice MacGyver job Joe!