Zoeller 30-0043 - 2" Clear Quiet Check Valve

Like most users who would buy this check valve use a sump cover. If you install the valve about 2-3' above the cover, you won't be able to remove the cover as the fitting that comes with the valve that is cemented to the PVC pipe won't clear the hole in the sump pump cover as it is larger in diameter than the hole in the cover. I had to cut the pipe about 1' above the cover and install a rubber coupling for future access to the pump. I realized this dilemma after I installed the valve and forgot to install the cover! If you don't install a rubber coupling like I described when it comes time to change out the pump you'll have to lift the pump, discharge pipe and cover all at once. Am I missing something here?

Like most users who would buy this check valve use a sump cover. If you install the valve about 2-3' above the cover, you won't be able to remove the cover as the fitting that comes with the valve that is cemented to the PVC pipe won't clear the hole in the sump pump cover as it is larger in diameter than the hole in the cover. I had to cut the pipe about 1' above the cover and install a rubber coupling for future access to the pump. I realized this dilemma after I installed the valve and... more

Not as quiet as I expected but still quieter than what I had.

Went from a loud banging noise, that would echo through the house, to peace and quiet.

This product reduces shut off noise 90%. No more clunk when pump turns off.

Spent years listening to clunking sound until I discovered this product. Now it's nice and quiet.

Very quiet, no bang at all. Well worth the money.

This valve replaces the year-old check valve that was originally installed on my sump pump. When this prior valve closed after the pump shut off, it was extremely noisy and would actually cause the floor of the room above to shake. It also caused the sewer pipes to shake violently. These problems were a great concern to us. I installed the quiet check valve and we no longer have the noise or shaking problems. We are so thankful that we could switch to this valve -- it was well worth the cost and effort involved. My only regret is that I did not install it sooner.

Before purchasing the Zoeller Quiet Check Valve I had a question which I sent to Zoeller in an email. Within an hour a technician from Zoeller called me and answered all my questions (including a couple I had not thought about yet). I have never experienced such incredible customer service in my 75 years of life.

This valve replaces the year-old check valve that was originally installed on my sump pump. When this prior valve closed after the pump shut off, it was extremely noisy and would actually cause the floor of the room above to shake. It also caused the sewer pipes to shake violently. These problems were a great concern to us. I installed the quiet check valve and we no longer have the noise or shaking problems. We are so thankful that we could switch to this valve -- it was well worth the... more

The install went easier than I expected for this DIY person. Good construction and NO MORE THUMP! Highly recommend.

I could not find a sump pump check valve that would not make a thumping noise when the sump pump would shut off due to the long pumping distance creating a large head of back flow water pressure . The Zoeller Quiet Check valve makes zero noise when closing. What a great product .

Replaced a screw clamp and rubber model which bloated when the pumped kicked on and loosened up with this rigid one. Now no concerns about it blowing up or blowing off. Union style a plus also.

This valve replaced the previous valve that was in place at my new house on the lower level sewage pit. The old valve would bang/ slam shut and shake the pipes. The new clear quiet valve is completely quiet, you hear the pump start then nothing but silence...!