Help! looking for some knowledge of plumbing--someone who has seen a lot of toilets... intimate with the porcelain god, so to speak.
I just removed a kohler toilet from the wall (wall mount, rear drain) to check the was ring. I found what appears to be a tiny clean-out plug in the bottom of the p-trap. I think that might be what has been leaking.
now why would there be a clean-out in a toilet p-trap? that is, you would have to lift the toilet off the floor to get to the clean-out. and it is really a tiny opening.
So my question is, what should I do to seal this plug? I put a pic below, but may be too low-res? I don't want to buy a new toilet (is this a standard thing?), and I certainly don't want to take 'er out again in the next few years.
plug.jpg
BTW, I just poked three holes in the wall looking for a busted pipe. (The tank stopped filling during the super freeze last week.) But I haven't found any busted pipe yet. So I am pretty annoyed and frustrated... I hope to resolve this problem once and for all before I get to patching and painting.