Basement Watchdog offers several support options for our products such as tips, tutorials and troubleshooting guides. We are here for your and ready to help in any way we can.

Basement Watchdog Klunkless Check Valve™

Basement Watchdog The Klunkless Check Valve
    Product Overview:
    This Basement Watchdog Klunkless Check Valve features a silencing air chamber that absorbs the sound that normally occurs after a pump shuts off. The valve installs easily on both 1-1/2" and 1-1/4" pipes with no gluing required.
  • Reduces the loud CLUNKING sound when sump pumps stops
  • Silencing air chamber absorbs the sound that normally occurs after pump shutoff
    Easy Installation:
  • No gluing required
  • Compatible with 1-1/2 in. and 1-1/4 in. pipes
  • Fits easily in compact spaces
  • Not for use with ejector pumps
    Includes:
  • Stainless-steel hose clamps for convenience
Model No. KVC
1 Year Warranty


Basement Watchdog The Klunkless Check Valve Basement Watchdog The Klunkless Check Valve Basement Watchdog The Klunkless Check Valve

How it Works

    Importance of check valves
    Universal Dual Float Switch Installation
  • Installed on sump pump discharge pipes to keep water from returning to the sump pit when the pump stops
  • Keeps flooding water from entering the building through the discharge pipe
    How check valves work
  • While the pump is running the flapper in the check valve opens and lets the water out
  • When the pump stops, the water above the check valve rushes back down and slams the flapper closed
  • This keeps the water from re-entering the sump pit it also makes a loud and annoying clunking noise!
    Major Improvement: The Klunkless Check Valve™
  • Has a large silencing air chamber that absorbs the sound of the returning water
  • Reduces the noise when the pump stops
  • Don't be awakened on rainy nights by a clunking noise every time the sump pump stops!



Logo