Back water, None return,anti flood valve 110mm are becoming more and more popular as areas of the country are getting more susceptible to flooding.
prevents the flow of storm water getting back into your property
a clever flap design and lock off lid helps you manage the use and cleaning and siting of this clever devise. easy to install direct into your sewer drain line and is now a must have option for all installations of pipe work.
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example , you could also fit these to septic tank soakaway systems to prevent your tank from back filling with heavy rain and causing you extra cost on emptying your septic tank .