Most damaged valves can be repaired by replacing the Diverter Valve Assembly inside the Diverter Valve Body. See our guide on "How To Repair a Diverter Valve". Occasionally, however, the Valve body may itself break and you will have to replace the whole Valve. Many times the broken valve will be integrated in s cluster of control valves and replacing one may require replacing the cluster. If you are lucky the valve will be off by itself and, therefore, much easier to replace. This guide shows you how to replace a single Diverter Valve.
BUY PARTS - The main part you will need in a 3- way Diverter Valve. We would recommend a Valve with a Teflon coated paddle like the Jandy Neverlube 3 Way Valve 1 1/2 Inside / 2 Outside. This Valve never needs to be lubricated like the older models. This particular Valve will adapt to either 1 1/2" or 2" piping. The other products you will need are a section of piping and the straight PVC connectors.
CUT OUT VALVE - If you have a 3-way Diverter Valve, you will have to cut each of the three pipes attached to the Valve. Make sure you have enough room on each pipe to add in a straight connector and short pipe to reconnect each line. Allow for 3/4" overlap into the Valve and 3/4" overlap into each end of the connector. If you cannot fit the new connector into the pipe at this point, you will have to make your cuts further down each line. Also, to insert a new Valve into this pipe system, the pipes must have enough flexibility to allow for slipping the last short pipe into the Valve and Connector. If the pipes are too rigid, you might consider replacing the old Valve with a Valve with Unions.
GLUE IN PIPES - Glue each short pipe into its Valve port and Connector. It may be easiest to glue both ends of the pipe and inserting it into both Valve and Connector at the same time. Save the shorter pipe for the last insertion. You will have to spread the piping a little to force this last short pipe in. Wait 2 hours for the glue to dry before turning on the pump
REPLACE VALVE ASSEMBLY - Replace the Diverter Valve Assembly into the Valve and tighten it down with the 8 screws. Make sure the Valve Assembly is inserted the same way as it was with the "INLET" label positioned on the middle port where the water comes in. If you insert the Valve any other way, you run the risk of shutting off all water to this valve.
OPTION - VALVE WITH UNIONS - If the piping is too rigid to force the new Valve into the system, you may want to consider using a Diverter Valve with Unions. You would cut the old Valve out, glue in one side of each union, drop the Valve in and screw it in place. This arrangement would also make replacing a future Valve much easier. Just unscrew the three Unions and replace the Valve.