Loud Noise From The Pipe Or Sewer Pump

Buck Parrish

I recently installed a sewer pump.
As soon as the water gets sucked out of the basin . It makes a very loud noise. It sounds like it is in the drain pipe. It goes boom-bang real loud.

The pipes are secured very well and are not moving at all. I have a studavent on the sewer basin. And a studivent at the washer and laundry sink.
Any thougths on what would cause this?
Here is a short video of the install. You can use your pause button because it goes fast.ly

I had to wait untill I got to 15 post before the forum would allow me to link to this video.
Here it is http://www.youtube.com/watch?v=Ar78l...e=channel_page

woodchuck2

I dont know if i am any help here as i know little about plumbing but i beleive you need a designated vent for a septic pump/grinder. My guess is that your system is not venting properly.

Buck Parrish

I had heard you must vent through the roof to the sewer pump basin.
Since I don't have a toiliet, I just used a studvent. I would think it could still suck air.

Plumber_Bill

The loud noise "CLOP" is probably the check valve closing when the pump shuts off. Probably is normal -- I asume you have a check in there that is made for an ejector pump. As to Studor Venting -- No good for a tank vent, you must vent to atmoshere. Reason when that tank is partially full of water. The rest of the container is air. You will not be able to drain more volume into the tank with out relieving the air in the tank. Studor Vents only draw air into the piping system. They will not vent air out.

Bill Parr LMP 205 Allentown, PA

Buck Parrish

Thanks, Yes I have a check valve . Here is the video. You can see the install. It is a short video.

http://www.youtube.com/watch?v=Ar78l...e=channel_page

Buck Parrish

I had to wait until I got to 15 post before the forum would allow me to post.
Here it is. http://www.youtube.com/watch?v=Ar78l...e=channel_page

I agree the vent should go to the out side as plumber bill said.
You can see how I have it vented to a studavent. But the noise is when it sucks the water out.. I am assuming air gets sucked in at that time, too.

Buck Parrish

So I took the studavent off. And I vented to the out side.I still hear the noise though.

ChrWright

As Bill said... when the pump shuts off, gravity takes over again and the water slams to a stop against the check valve.

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davew

I have a similar situation.
I installed a check valve on my sump pump - 1-1/2" diameter pvc glue joint, also a check valve on the ejector pump - 2" diameter threaded.
The 1-1/2" check valve is very quiet, but the 2" check valve really bangs.

Is there a way to quiet down the 2" valve ?

Thanks!
davew

Magnettica

Rich Trethewey (TOH) covered this several years ago.

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