Install a drain fitting to each valve ... Then, shortly after the tap, install a full-flow ball valve. Merle Henkenius Install a full-flow ball valve so you can service the backflow preventer ...

If you are going to use a ball valve for the water heater’s drain, install a cap on it so that if a child does throw the handle, the hot water won’t rush out. Installing the new drain valve is ...

Install the new full-port valve in closed position. Attach one end of the garden hose to the valve and run the other end into a colander set over the floor drain. Remove the ball valve handle ...