A Simple Valve Prevents Flooding

Installing and maintaining an anti-siphon device is easy-and prudent-to do. From "Hands-On Sailor" in our April 2008 issue

Flood-guard prevents basement flooding. This very easy to install basement flood prevention device operates like a check valve to seal off water

Flood-Guard 4 in. (10 cm) Float Model

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flood control - Students, Britannica Kids

Water, Free Full-Text

Backwater valves are installed in horizontal sewage pipes before they exit a building or sewage drain outside the building before its connection to an

110mm Non Return Valve Backflow Flood Prevention Single Stainless Steel Flap

Backwater Valves, How They Work, Costs and Repairs

Minimprover Internal Backwater Valve,3-F 3 Float Model Flood-Guard for 3-inch Flood Drains,Drain Backflow Preventer for Sewer Flood Protection

Do I Need A Backwater Valve?

Sewer Backflow Preventer 9 Point Questions And Answers Guide