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amakarevic 06-16-2008 02:39 PM

bathtub drain in concrete - tail pipe questions
i am setting my bathtub in a concrete basement apartment.

got an expensive brass drain assembly by gerber ($75-ish).

Q1: should i use a regular tail adapter between it and the P-trap ? if so, should i use one with or without a tapered washer ? i noticed they have the kind on which the female part is spaced to allow for a washer in between it, the tail pipe, and the male, as well as those with a female part that cannot fit a washer.

Q2: also, does the washer act as a gasket ? this will all be buried, oh by the way

Q3: how do i test that the connection between the tail pipe and the adapter does not leak under a big discharge (tub full of water being released) when the tub has an apron - cannot see the drain ?

Ron The Plumber 06-16-2008 08:52 PM

Why not pipe it with all glue joints?

Alan 06-16-2008 09:57 PM

x2 on ron's post. Take that brass assembly back if it's going to be buried anyhow. Total waste of money. :eek:

As for testing, usually test before sheetrock goes on, so that you can see.

amakarevic 06-17-2008 10:08 AM

it is not the sheetrock that obstructs view, it is the tub ityeslf as it has an apron on it and the other long side is against a wall of the house, not inner drywall.

so go with all PVC drain if it is buried, you're saying ?

amakarevic 06-17-2008 11:39 AM


Originally Posted by Ron The Plumber (Post 130997)
Why not pipe it with all glue joints?

because the drain is brass.

Alan 06-17-2008 09:42 PM

I don't know what your drains are plumbed with... this is obviously ABS, and I'm sure they make them in PVC also. These are ~12 ish, instead of ~75 ish. They glue completely together, so you won't have adapters that can leak later....

As far as testing when you're against an exterior wall..... I don't know. We would have told the builder that we were flipping the tub, and put the drain on an interior.

Ron The Plumber 06-17-2008 09:47 PM


Originally Posted by amakarevic (Post 131135)
because the drain is brass.

You can still use all glue joints below the bass W/O assembly, screw on a female adaptor on the bottom of the brass tee, and take it from there.

Alan 06-17-2008 09:50 PM

I wouldn't even use the brass at 75 bucks if it's buried next to an exterior wall and behind an apron....... those seem like something you'd use on a clawfoot.

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