Zoeller 30-0041 50 psi PVC 2-Port Check Valve, 1-1/2" White

This is a quality product that really works well. I had a cheap check valve that failed and caused my pedestal sump pump to run constantly, causing it to overheat. Luckily I was home at the time and noticed the smell / smoke before it was a real problem. The old check valve had a water hammer eliminator build in, which worked for a while. After some time, it no longer was quiet. I installed the Zoeller check valve and it was very quiet - quieter than the old one with the built in water hammer eliminator. I am very happy with this product and highly recommend it. And, it is made in the USA. Well worth the price.

I never knew a check valve could be this silent. I bought and installed this for my father in-law to give him visible proof the sump pump was ejecting the water because the sump lid is sealed, and this valve is transparent. I had no idea it was also so silent they cannot hear the sump running from upstairs. I recommend it for anyone that's tired of hearing the clunking of their sump check valve during the rainy season.

Replaced sump pump and figured might as well do the check valve at the same time. I only buy Zoeller when possible, and this check valve was cool because the old one was dark green plastic and you couldn't see anything. Over time, it was starting to leak a bit, but with the new one, you can see the valve, which is so cool. And if you have any kind of water "hammer" when the pump stops, this will make it quiet. Although you need PVC cement rather than rubber union with clamps, it looks much cleaner and is easier to remove as you just unscrew the endcaps and it slips in/out. Great product.

I replaced another "clank free" check valve and the thing I like the best is the visual you get out of it. You can see the flapper actually working. If you have a small level of ability to work with pvc pipe then this is a real simple install. If you are intimidated then call the plumber. This thing is so quiet I cannot even hear it close since there is a tension spring on the inside of it. My only concern is how long it may take for the hard water to destroy the spring internally so I will keep an eye on it and make sure I have a backup for it to change it if and when necessary.

This check valve with union slip port fittings saves work. It is very quite. Nice to see the flow through the clear valve body. I have used the opaque is the past and this clear valve is of the same quality and functionality.

This check valve is easy to install and replace if needed. It functions well as it is very quiet.One word of caution, be sure the seal is properly seated before tightening and turning the pump on. I deducted one star because the seal on my unit kept falling out causing water to spray all over. It worked fine after seating it properly.

I will never use any other check valve in my sump pump lines. This one is sturdy and quiet and you can watch the valve working.

Exactly what we needed for the pool. Works great running vertical or horizontal. It's great that its see thru and you can see it in action. Would buy again! Thanks