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.Do you really want to see dirty water?
Would Not RecommendBought this one since the way described, thought it would be better check valve than the old one I had that we suspected no longer worked. installation was good, however, kept leaking past clamps a bit no matter how much it was tightened (leaked on the valve side not the pipe side). The other thing is that it was not kool to see the dirty waste water.
Verified PurchaserSweepstakes
Valve
Would RecommendThis is a great product. You can see the flap and be able to see if it's not working. Since I put it in have had no more problems.
Verified PurchaserSweepstakes
Hubie,
I would agree, this is a great check valve! If you have any questions, please call our technical support line @ 1-800-742-5044. Thanks ag...

lowes always carries the best products
Would Recommendthe right place for every day emergency.
Verified PurchaserSweepstakes
Best 30 Dollars you will spend........
Would RecommendAfter 30 years in our house I have finally found a check valve that delivers. No more clunk! Now the dishes will not rattle in the dining room!!! Super easy to install. Well worth the extra money. Should have done it 29 1/2 years ago.....
Sweepstakes
Thumper has left the building!
Would RecommendNew house to us and had same make check valve and thumped shut right under our bedroom. This “quiet” model is worth the higher cost as it will let you sleep at night. Easy swap with existing valve with only a screwdriver for the clamps needed.
Sweepstakes
Check valve
Would RecommendGood installation instructions, easy to follow and install.
Verified PurchaserSweepstakes
It's a miracle valve
Would RecommendHad thumping and humming noise when pump operates. Installed it leaving the original valve as is. What a difference. Noise is gone. 100% satisfied with this product. Thanks to Zoeller engineers who came up with this design. Easy install. Would recommend to everyone who is having noise/thumping issue.
Sweepstakes
Perfect check valve
Would RecommendA well built valve with a clear body. The rubber hose connections make installation and any repairs or maintenance easy.
Verified PurchaserSweepstakes
Best EVER
Would RecommendThis thing is so quiet!! I have to check my sump pump every once in a while to make sure it’s working. Would buy again!!
Verified PurchaserSweepstakes
Check valve
Would RecommendVery easy to install. And it does make my sump pump area a lot quieter. Not as noticeable through the house
Verified PurchaserSweepstakes
Super quiet
Would RecommendMy wife and I went searching for a "quiet" check valve as our previous cheap model valve was making very loud hammering noises every time the sump pump ran and shut off. Found this one and the reviews were positive so ordered one and installed it two days ago. Simple installation. I just had to saw off a 2" piece of pvc pipe to make it fit as this model is slightly longer than the check valve we had in place originally. Those loud hammering noises are a thing of the past now. We're in a wet s...
homeowner,
Thank you for taking the time to write a review and for the 5 star rating! We do feel this is one of the best check valves available....

finally quiet
Would RecommendAfter installing a new sump pump I had the dreaded check valve clunk, actually more of a bang every time the pump would finish running. Had the regular in-line valve on there and then tried a basement watchdog anti-clunk, it was actually worse than the cheap valve I had on there. So I installed this zoeller valve and to my amazement it's dead quiet! Can't believe I put up with the clunk this whole spring as my sump runs every 7 minuites. I would recommend this valve! Install it and enjoy the qui...
try this again, my previous review never showed up
Would RecommendEven though this Zoeller clear plastic check-valve doesn't have the word 'quiet' or 'silencer' in its product name, that's exactly what it does! We bought thi today from a Lowes here in town for just under thirty clams, and it took us literally less than 10 minutes to unhook the old used up check-valve from my sump pump, and attach this Zoller model 1030-0242 one instead. It made a HUGE difference, and now whenever my sump pump goes off in the basement, I hear NO knocking afterwards whatsoever...
Sweepstakes
Mike, Thank you for your excellent review. the Zoeller team is always thrilled to get such great feedback. we are pleased you and your family are enj...

Well worth the money!
Would RecommendI don’t write many reviews but I had to on this. Zoeller makes the best pumps. My last one lasted 16 years. (M54). I always got a bang when my pump shut off and the standard Zoeller check valves never failed. So, I read about this and spent the extra 15 bucks hoping it MIGHT make a little difference. Well, it did. I have zero noise now. And I mean zero. Even my pump runs quieter. I liked it so much I purchased a extra. One thing to note that Zoeller does that others don’t do. And it m...
Sweepstakes
Wally, Thank you for your excellent review!. We are proud to be the most trusted pump company in the USA. it thrills us here at Zoeller knowing we ca...

Great item
Would RecommendI like this check valve because you can actually see it work.
Verified PurchaserSweepstakes
It’s so quiet
Would RecommendI should have gotten this years ago. So quiet, love it! It really is like night and day difference and so easy to install.
Sweepstakes

Rooney,
Sorry to head you had some sort of leak. Not sure how seeing dirty waste water constitutes a 2 star rating but understand about the leak...