How to Replace a Sump Pump: Pa...

What you need to know about Check Valves and sump pumps.

Check valves are one directional flaps that keep water from flowing back into your sump pit.

The Basement DefenderTM battery back up pump comes with a check valve already installed in the assembly.

The Basement DefenderTM backup system requires a check valve, included in the kit, mounted on the outlet on the base of the AC sump pump, so when the backup pump turns on it will not send water back into the sump pit through the AC pump.

If a second check valve is mounted above the backup pump, it could cut its capacity in half because the backup pump now has to push water through two check valves. Another thing it can do is recirculate water in the pit, running continuously until your sump pump burns out.

A simple rubber coupling should be used to connect the assembly with the discharge line.

Roy Spencer - President of Basement Defender
Roy is a respected authority in the waterproofing industry, with over 40 years of experience under his belt. His company, Perma-Seal, has earned a reputation as Chicagoland’s premier waterproofing contractor, thanks to Roy’s unwavering commitment to quality, integrity, and customer satisfaction. His latest innovation, the Basement DefenderTM, is a testament to his dedication to providing homeowners with the best possible protection against basement flooding, representing a major leap forward in the industry’s efforts to prevent water damage and save homeowners from costly repairs.