Sta-rite crystal flo model T-240BP-1 parts help

Hello, on my sta-rite sand filter model T-240BP-1, water is starting to leak right under  the handle. I have looked at your trouble shooting article, but still need more clarification on what parts I need and if you stock them. From the article, I gather I need the diverted spring and some gaskets.. what exact gaskets? The handle will leak in any position ( filter, backwash, rinse). Can you tell me what parts I should order?

Thanks,

Pete

(708)704-9367

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