🔇 Keep it quiet, keep it flowing — the silent guardian your sump pump deserves!
The PumpSpy Silent Check Valve Model CV-150 features a spring-loaded flapper that eliminates disruptive water hammer noise, a clear ABS body for easy visual inspection of water flow, and comes with stainless steel clamps plus Buna-N rubber couplings for quick installation on 1.5" Schedule 40 pipes. Designed to prevent backflow, it significantly extends sump pump life by ensuring water only moves forward, all within a compact 8.5" x 3" x 3" footprint.
| Brand | PumpSpy |
| Color | Clear |
| Material | ABS |
| Style | Submersible |
| Product Dimensions | 8.5"L x 3"W x 3"H |
| Power Source | Ac/dc |
| Item Weight | 0.8 Pounds |
| Global Trade Identification Number | 00850004841143 |
| Manufacturer | Raybend |
| Part Number | 93100-01 |
| Item Weight | 12.8 ounces |
| Item model number | CV-150 |
| Size | 1.5 Inches |
| Item Package Quantity | 1 |
| Batteries Included? | No |
| Batteries Required? | No |
A**R
Perfectly silent
Works great , perfectly silent and easy to install. So glad I got it and don’t have to hear the other one clang anymore.
J**N
Quiet
Product works as advertised. No more hammering noise and easy to install.
K**T
Super duper quiet!
I wish I installed sooner. I bought mine 18months ago but after redoing a dual pump setup with a Radon mitigation lid, I was in no hurry to dig that all apart to get at one check valve under that lid. But after 10's of thousands of cycles with a regular check valve on the primary pump finally worked its way loose from hammering away with seasonal heavy rains, I updated both 1.5 and 2" pipes. Easy to install and super duper quiet!!! Omigosh, we can sleep at night with no one thumping on the walls of the basement. My 1.5" is on a Halo system that is essentially my cycle counter with the larger emergency backup on a 1hp 2" pipe. Nice to see the action of each unit. Only thing I wish they had was a magnetic catch that could help manually open the flap for extra peace of mind come brutal Wisc winters to avoid freezing any water that might still be near the wall or exit area. Mine typically run early spring and wet summers and sump is basically bone dry come winter especially with the Radon fan - which also increases the flow of water due to the immense suction generated. I cut an access window in mine to be able to inspect and reach an arm in for emergency maint work on sensors, etc..
J**D
No more water hammer bang!
I have lived in my house for 9 years and my sump pump has made the water hammer slam the entire time. I finally got fed up and researched and found this. I cannot believe how well it works. Pump is silent now, no slam. It works so well, I ordered another for my ejector pump. I recently had some pipe replaced by plumbers and ever since have the water hammer, although not as bad, on my ejector pump discharge. So excited that these annoying sounds will be gone!
A**R
NO RAGRETS. Not even one letter.
I installed a sump pump and a battery backup pump combo. I decided to buy this based on reviews. It is really easy to install, and it is quiet. It’s also cool seeing the valve in action.
A**N
So much quieter!
Replaced the typical green check valve that all sump pumps have with this pump spy unit. Not only is it silent when the pump shuts off/closes the check valve, it transmits so much less pump noise. I am impressed on first installation. Construction seems good, hopefully it lasts long.Reduced noise by at least half.
L**T
Good choice
Very quiet
H**R
Spend the money this thing is silent!!!
If there was six stars I would have rated it that! If you have one of the older dark green one way valves that produces a loud bang/water hammer every time it closes, SPEND THE MONEY and order one of these!!! Eighteen years I lived with all that noise. This thing is near silent and works so awesome. Install was super easy, four hose clamps that’s it. You’ll probably get a little wet from the water in the discharge pipe but install is easy. Quick shipping got it the next day.
