When we built our house a few years ago I had a rough in for a utility
sink installed in the garage, lines for hot and cold, and a waste
pipe. Now that I'm getting around to installing the utility tub I
think I might have a problem.....I'm not a big plumber. The basement
and foundation for the house and garage were poured so that there is a
32 inch concrete wall that runs around the garage. So the waste pipe
that sticks out of the garage wall is about 36 inches high, but the
bottom of the drain for the sink would only be about 16 or 18 inches.
The waste pipe runs over that garage wall and down into the basement
and then out of the house. So how do I get that waste water over the
"hump" of the garage wall? I hate to spend money for a lift pump just
to get that waste water over that little 18 inch hump. Is there some
trick like some retrictive piping with an enlarged P trap just to get
that watse water over that hump?
Get a piece of tubing that will fit into the drain fitting of the sink.
Since the pipe and sink will be full of water, just blow into the tubing and
the water will flow over the hump. Repeat as necessary.
Why not bore a hole through the concete below where the sink drain is and
reconnect it to the existing pipe and let gravity drain your sink? Also
don't forget to put in a P trap.
let gravity do the work?
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