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I have this in-line backup valve in our home.,.Mainline #4963 Full-Port Backwater Valve. I am searching out views on this gates engineering. I am trying to understand why this open gate concept is better than the traditional “ closed gate backup valve”…I have one on a secondary drain. There is...

We own a 1973 home with copper water lines(city service and home). We have water shut off sensors throughout the house. Went a sensor is activated..two drops of water…it will automatically shut off our main water supply valve. Great protection. We also have our home monitored for heat, water...

Blue line is existing line. Green is proposed new line. The blue and green line that run parallel for the toilet are two feet apart. Will I have a problem in this configuration. Comments very much appreciated.