I recently had a home inspected and was told the sump pump and the washing
machine should not be draining into the main wast line. The washing machine
also had a running trap with no vent. Why and how is this a problem and how
can it be resolved?
My first question would be who did the inspection? Sounds a bit screwy to
me. No, the sump pump should not pump to the waste line...it should pump
outside or according to your local code. Where did they say the washing
machine should dump? If they are just saying it is tied in wrong, that is
likely, but you can't dump a washing machine discharge anywhere else
besides the main waste line from your home.
No vent makes the water drain slow. Think of a straw with your finger over
the top. You need air in to let water out.
Thank you for your response. i assume if the sump pump drains into
the main waste line, it could cause a back up in the line. It is best to
have it pump from the box sill out onto the ground? Also what would be the
best way to vent the washing machine line?
Eric G. wrote:
The problem with the sump pump pumping to the waste line is that if
everyone in your neighborhood did it, the local sewage treatment plant
would get overloaded with rain water every time it rained, and sometimes
for days after a rain. In most towns it is a violation of the sewer
ordinance to do so. Although *most* older homes (at least here in NJ)
are still connected.
The best way to vent the washing machine line would be according to
code. I don't know where you live or what your plumbing looks like
right now, so to say any more than that would not be prudent.
No problem. Wish I could help more but my best suggestion would be to call
a qualified plumber in your area to do the job right. Even if it is just
for consulting and you do the work yourself, you will save a ton of trouble
by having it done by a pro.
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