Response to Hi, Gene. If you're able to remove the pvc from the valve, no seals will be required if the valve is leaking from the plumbing ports. If the valve is leaking from the Backwash port, then you will need to replace the seals within the valve. The replacement parts are listed on the Hayward Multiport Variflo XL 1 1/2" SP714T Parts Diagram

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