Ratings may include incentivized customer reviews.
What Customers Are Saying
The product appears to be an effective and quiet solution for addressing water hammer issues caused by sump pumps. Most customers report that it virtually eliminates the loud banging and hammering noises, allowing for peaceful sleep. Many praise the valve's quiet operation, with several noting it is "very quiet" or "silent" when the sump pump shuts off. The clear casing is also highlighted as a useful feature for visual inspection. While a few reviewers noted minor issues, the overall consensus is that the product effectively solves the common problem of noisy sump pump check valves.
Customer review summary generated by AI, including incentivized reviews.No more hammer sound
Would RecommendWish I replaced my brass check valve sooner! Only one day in, but no more hammer sound! Easy to install.
Zoeller Plastic Check Valve
Would RecommendI've been living with the booming noise of my sump pump for years. I didn't know about quiet check valves. This one is very quiet and so far works great. No more booming and my nephew said it was easy to install it only required a flat head screwdriver and a hacksaw to cut off a little excess pvc pipe. I'm very happy.
Verified Purchaser
Laurie,
Thank you for taking the time to write a review and for the 5 star rating! We appreciate your trust in us and expect many years of servi...

quiet
Would Recommendfor years I've put up with the constant banging of my old check valves but at least I knew that my sump pump was working. I installed this check valve and it is so very quiet that now I worry that it is still working. Just kidding. I really like it.
Henry,
You would think by hearing people state they cannot hear their sump pump anymore would be a bad thing but, in this case, awesome! Thank y...

Very quiet does what its supposed to do.
Would RecommendPump was making such a bad noise It was very annoying. Installed this and now it is so quiet I have to strain to hear it when its running.
Verified Purchaser
Bubba,
That is what we like to hear! The silent check valve is a great product with a great following of users. If you have any questions, pleas...

Quiet and I like how you can see through it. Worth the money
Verified Purchaser
justin,
Thank you for the kind words and for the 5 star rating! We appreciate your trust in Zoeller Pumps and hope for many years of service for...

SILENT and it just works
Would RecommendMy sump discharge has an 8' vertical run to the outside, and I've always had "clunking" issues whenever the pump stops. I have purchased different brands of "clunkless" check valves over the years from different home centers (including Lowes), but they only last about a year, and none truly eliminated the clunk- just quieted it down somewhat. I came across this product by accident looking for something else but bought it to try something different. Well, I can honestly say that this completely e...
Verified Purchaser
Tony,
Thank you! We feel it is the quietest silent check valve out there! We hope for many years of service for you. If you have any questions, ...

I have had this product for several weeks now and it is living up to it’s quiet operation marketing. I replaced my basement watchdog Clunkless valves which failed after 2 yrs. with the Zoeller. I have had two basement watchdog check valves which did not live up to its clunkless operation hype. I hope this Zoeller valve works better.
Verified Purchaser
John,
Thank you for taking the time to write a review and for the 5 star rating! We strongly feel you will be very happy with the silent check v...

Zoeller Check Valve
Would RecommendI use to listen to our sump pump go off every couple minutes during wet times and then hear an echo in the gutter drains for about 5-10 seconds that it is tied in to. The pump is directly below our master bedroom. I went down into the crawl space and noticed the builder didn't even install a check valve above the pump so the echo in the gutter drains was the water running backwards back into the sump pit. I think most of the water was returning to the pit and only a small portion was making it ...
Scott,
Thank you for the kind words and for the 5 star rating! We hear time and time again how quiet this check valve really is. If you have any...

quiet check valve
Would Recommendthis check valve has improved the quality of my life. the hammering sound every time the sump pump shut off was so loud throughout the house. now I don't even hear it. I wish I purchased this years ago.
Verified Purchaser
Michele,
We agree! I can't tell you how many times I have heard people say that the Zoeller Quiet Check Valve was the best purchase they hav...

No more hammer!
Would RecommendWe built our home 3 years ago. The plummer installed a regular check valve on the sump pump and it produced an unbelievably loud hammer noise when the pump stopped. It was annoying since the sump pump was in the basement under our bedroom. I just found out about the Zoeller check valve and installation took about 10 minutes tops. When the sump pump stops, there is NO NOISE at all. The Zoeller check valve certainly works exactly like it is supposed to! Glad I purchased it!
Mark,
Awesome!! I love when people look past the price and see the valve of a quality product. If you have an questions, please call our technic...

No more clunck!
Would RecommendNo more rattling and clunking when the sump pump runs.
Verified Purchaser
Rich,
Thank you for taking the time to write a review and for the 5 star rating! The Zoeller quiet check valve is indeed a very quiet check valv...

Quite
Would RecommendDoes what it says. Completely quite. A must for anyone who has a sump pump under their bedroom.
Mason.
Thank you for the kind words and for the 5 star rating! If you have any questions, please call our technical support line @ 1-800-742...

Simple to use
Would RecommendJust tighten the clamps and your done. Couldn't be easier.
Verified Purchaser
Jeff,
Thanks you for the kind words and for the 5 star rating! If you have any questions, please call our technical support team @ 1-800-742...

What a difference
Would RecommendIt's hard to believe what a difference this check value makes. I installed a batter backup sump pump and originally purchase a cheap check value. What a mistake, it's hard to describe how loud a cheap check value is, but you do not want one. The Zoeller check value is a few bucks more plus I had to have it shipped to my local Lowes but it was worth it. Now we sleep during the night instead of being remined that the pump just turned off (over and over during the night).
Verified Purchaser
Mark,
We are glad to hear all worked well with your check valve. If you have any questions, please call our technical support team @ 1-800-7...

Silent Check Valve
Would RecommendProduct performed as expected. Removed all the noise I experienced with standard check valve in a sump pump line.
Verified Purchaser
Robey,
Thank you for taking the time to write a review and for the 5 star rating! If you have any questions, please call our technical support ...


Hansy,
Thank you for taking the time to write a review and for the 5 star rating! If you have any questions or concerns, please call our tech s...