“I only gave it a 4 star because it needs to be cemented in, it's just a little more difficult than one with rubber collars and clamps. I was sceptical about just how quiet this valve is... After installing this I was amazed, no noise. If you buy this make sure you get the proper cement at the same time, in my case ABS to PVC cement.”
“Didn’t even know what a check valve was until moving into a 120-year-old house and hearing the slam each time the sump ran. Found this online — installed easily — problem gone.”
“I needed an in-line threaded check valve... clamp-ons would crack and fail after a few years... Now I'll be able to maintain the pumps, or replace them, much quicker.”
“We isolated a noisy check valve that was the bane of our existence, resulting in a loud knock after each sump pump run. This valve promptly put an end to that with a truly silent experience. Relatively straightforward to install and well engineered. Don't waste time researching others, this one is highly recommended.”
“Easy to install into 1.5" PVC. Very durable, very quiet. Huge improvement over my old loud preventer. Haven’t tested long term yet, but it’s great so far.”
