Wayne Whitney wrote:
On 2008-06-25, sinister wrote:

While examining the AC condensate drain, I noticed that the pipe
coming from the pressure relief valve on the hot water heater joins
it. (Actually, it _used_ to join it; now that joint is completely
loose.) The condensate drain pipe then travels another couple feet
and drains into the pipe for the clothes washer drain. Is that a
good idea? Somehow I don't think so.

No, it is not a good idea. The pipe on the pressure relief valve
should be a single straight piece terminating about 6"-12" above the
floor. Most plumbing codes do not allow additional fittings on it or
piping it to a drain. If the valve operates, you want to be aware of
it, as it is a sign of a problem.


Mine goes up to the attic, across, then down through a wall, and exits the
house about a foot above ground level.