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Author:
PuraVida (CO)
I'm buying a new construction condo and did an early pre-purchase inspection..
In the bathroom, the vertical drain drop to the trap below the sink is not aligned with the center of the sink.
see pic below.
The builder must have created a vertical to horizantal to vertical diversion right under the sink in order to accomplish this.
It not only looks bad, but I wondered if this might violate plumbing code as a diversion might impede drain flow and make drain cleaning difficult. Especially if they didnt use a long sweep elbow.
I need to have some solid plumbing argument (code ?) to make the builder change this as they have resisted so far. I do realize that any normal person would have kept the vertical drop aligned to the center of the sink, and then made the horizontal adjustment to the wall AFTER the trap exit. But now I'm facing a big company that is trying to make me take it or leave it. I'd rather not fix it myself later as this is new construction not an as-is pre-owned property. (and the wall is concrete block , not sheetrock)
Any advice would help. An IPC that addresses this?
Thanks in advance.
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Author:
packy (MA)
those are bottle traps.
look up "bottle trap"...
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Author:
sum (FL)
The reason the trap is positioned where it is because the bottle traps must center on the drain.
A very easy solution without the need to open the wall is to use a conventional P-trap which has a 4" width in either direction to roll the U-bend to the drain. A P-trap will connect the drain tailpiece to the wall connection easily and a P-trap is a much more reliable trap installation compared to a bottle trap which has an internal partition and is not self scouring.
The problem you might face is that shelf may not be low enough for a P-trap, not sure. Also a P-trap will mean the hot and cold supply valves will no longer center on the drain.
I believe bottle traps are not code compliant, not sure though.
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Author:
packy (MA)
i'm guessing that if there is a certificate of occupancy then the local, inspectional services has deemed the installation up to code.
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