Jon1270
New Member
I'd like to use a Kohler 9033 bottle trap, which I don't have yet, with a wall-mounted bathroom sink. According to the spec sheet, the trap arm is just a straight 1 1/4" chromed brass pipe that goes between the bottle and the stub out, and includes an escutcheon that's large enough in diameter to go around a 1.5" fitting, but is only 13/16" deep (presumably ~3/4" inside). The stub out I'd be connecting to is 1 1/2" iron, inside threads, and sits proud of the wall by about 1/4".
Kohler's installation document shows an illustration of a very similar situation, but the text just says, "Insert the pipe into the drain stub-out with seal (not provided), then push the flange against the finished wall." The escutcheon is what they're calling a flange.
I haven't been able to deduce what kind of "seal (not provided)" they mean, given that it needs to fit under such a shallow escutcheon. A 1.5"-1.25" adapter and compression nut, which is what's there now with the old sink and P-trap, sticks out an inch and a half from the wall surface, so that's out. The instructional wording makes it sound like there should be some sort of rubber insert that you can just slide the trap arm into; there's no mentioning of tightening anything at the stub out.
Any solutions come to mind?
Kohler's installation document shows an illustration of a very similar situation, but the text just says, "Insert the pipe into the drain stub-out with seal (not provided), then push the flange against the finished wall." The escutcheon is what they're calling a flange.
I haven't been able to deduce what kind of "seal (not provided)" they mean, given that it needs to fit under such a shallow escutcheon. A 1.5"-1.25" adapter and compression nut, which is what's there now with the old sink and P-trap, sticks out an inch and a half from the wall surface, so that's out. The instructional wording makes it sound like there should be some sort of rubber insert that you can just slide the trap arm into; there's no mentioning of tightening anything at the stub out.
Any solutions come to mind?