tomtheelder2020
Well-Known Member
Personally, I wouldn't spend a second worrying about odor from your very creative solution.
Here's Why:
A) Will self flush debris just as easily as a J-bend, perhaps better.
B) Creates an extra long water seal so it won't self-siphon during negative pressure conditions or if the system vent clogs.
C) Has a very deep weir. It'll handle accidental negative pressure and stop vermin extremely well.
Your solution looks like a low height drum trap. And, you've got it set up for easy removal should you so desire.
Similar "flat bottom" set ups are often used for condensate drains from million-plus BTU./Hr commercial air handlers and for swamp coolers. Any chance of bacteria laden odor is strictly prohibited for these units. (Legionnaire's Disease, etc.)
I am very happy to hear you think my solution will work. I went ahead with it because: a) I was under time pressure to make the bathroom usable; b) even if it doesn't flush well, it likely buys me a year or more; and c) it is really easy to remove and start over.
I considered this option but, never having done anything like this before, and have no idea what could go wrong, decided not to take a chance. If my solution does fail I might give a try but am more likely try your Fernco trap.Regarding the jamb nut on the wall:
Since your house is 75 years young, the pipe in the wall is most likely galvanized iron. (You might be able to sneak a peek around the escutcheon or try a strong magnet.) The jamb nut is probably plated brass.
Since the galvanized is so much stronger than brass, here's an idea for when (if) you feel like going back in:
With eye protection on, use a fine tooth blade from a hacksaw in a holder or a Dremel type rotary cut-off tool to carefully cut part of the way through the jamb nut in at least 2 places, 180 degrees apart. Cutting in 3 places at 120 degrees is even better. The nut will peel off by (gloved) hand.
If it's easier, peel off the escutcheon. Split ones are available if you can't find a solid one to fit.
Thanks for the input.