Little Giant 940022 CV 4 Inch Sewage Check Valve
Reduce the risk of basement flooding by understanding how sewer back-ups could happen and what you can do to prevent it, Learn about why some backwater valve fail. Most failure is due to lack of maintenance but calcium buildup from soil entering a Backwater Valve failure vs performance SUBSCRIBE to my FREE weekly newsletter: ☎️ DIY Phone Coaching HELP LINE: Replacing a check valve. The 2 inch check valve cracked and blew on this sewage ejector pump install causing quite a mess. ...