Make a cut into the pipe on the cold water supply before the pipe will reach the “pre-filter” housing. Tighten the pipe cutter onto the pipe and rotate it around the pipe to make the cut. Attach a shut-off valve to the pipe, either by gluing it to PVC, or by soldering it to copper. 4 way multi-functional universal cross key is a handy tool for plumbers, electricians and so on. Designed for control cabinets and shut-off systems in the supply of gas, water and electricity. A handy tool for dealing with various valves. Features: .
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Nov 04, 2020 · A Note About Automatic Shut Off Valves. Even if you have installed an automatic shut off valve on your water heater, you will still need a drain pan. An automatic shut off valve works by using a sensor to detect a leak which in turn shuts off the flow of incoming water.