On Mar 12, 10:31�am, "
wrote:
Hello, quick question for the experts out there. *I live in the
midwest and have a sump pump in the basement. *PVC from sump pump runs
up the basement wall and across a 10 foot ceiling section and connects
directly to the city sewer system underground (I think).

Our sump had been making a BANGING noise at the end of each cycle.
Reading up about that, I determined it must be a bad check valve.
Replaced that myself. *Still a lot of vibration. *Had a plumber come
out...he recommended a new sump pump as our home is 12-years old.
Plumber installed that, and told me to secure the ceiling PVC better
to remove vibration. *Winter came and I forgot about it. *;(

Now that we've had some thaws, vibration came back worse than ever. *I
got some hangers and secured the PVC as solid as possible. *Now, the
vibration is localized to the check valve, and it lasts like 30-45
seconds after the pump cycles. *No banging, just loud vibration.

I had saved the original check valve, which the plumber had said was
still good. *I put that back on, and all was quiet, until I noticed it
was leaking around the upper rubber flanges. *I tightened it down and
now it's the same...massive vibration localized to the check valve
after a cycle, lasting around 30-45 seconds.

Any ideas what's happening?

with a vibrating load rubber mounts would be better, think of your
cars engine.

are you aware its illegal to put sump pump ground water down a
sanitary sewer? during heavy rains the extra groundwater floods the
sewer plant.

eventually your sewer company or at home resale will catch up with
you.

around here they check on avewrage every 2 years and at home resale
have a tanker truck come out with infrared dye stained water dump it
in all downspouts sump pumps etc, while checking at a manhole looking
for the tell tale of cheating.