Way to make sand change.

  1. Remove multipart valve, cover middle pipe with cup as shown.

  2. Remove all sand taking care not to damage laterals with supa-sucka or cup.

  3. Refill with fresh tap water.

  4. 2/3rd fill with sand.

  5. Remove cup from middle tube - Replace valve and connect pipes - Backwash 2 minutes - Rinse 15 seconds.

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