“Valve is silent. No sound when closing. The clear housing is a plus. Definitely recommend.”
“Very happy with this valve. The fact that you can see if/why it fails is a bonus... although Zoeller products never fail in my experience.”
“Works great and as intended. I like that you can see that there is a positive flow of liquid through the valve.”
“This check valve really silenced the banging. We can't even hear the sump pump yet we know it's working.”
“The valve is quiet as claimed. Including unions makes it easy to install and remove.”
“Installed very easily and is night and day difference to the old valve. You can be right next to this one and not hear any "clunk".”
“Used this product for a sewer pump. The old valve was responsible for heavy water hammering. This valve works great, very smooth and quiet.”