How to Hook Up a Hayward 710 Multiport to a Filter

Shut off valves controlling water flow to and from the pool.

Orient the filter so the valve handle and all plumbing connections are easily accessible for routine maintenance.

Place O-rings over the ends of the inlet and outlet tubes on the valve assembly.

Line up the inlet and outlet tubes on the valve with the correct fittings on the side of the filter. Filter inlet is the upper fitting on the filter tank; filter outlet is the lower fitting. Press the valve tubes into the filter fittings.

Tighten the two bulkhead locknuts on the valve tubes by hand to secure the connection.

Install the pool return pipe and the waste pipe into the correct lower fittings on each side of the Multiport valve.

Plumb the pool-circulation-pump line to the elbow fitting on the upper-left side of the valve.

Open all valves to and from the pool.

Turn the Multiport valve control lever to the "Backwash" setting.

Start the pump and run for at least two minutes. Turn the pump off and move the Multiport valve control lever to the "Rinse" setting. Restart the pump for another 1/2 minute to 1 minute or until water in the filter sight glass is clear. Turn the pump off and move the Multiport valve control lever to the "Filter" setting.

Check for leaks at all valve connections.