| 摘要 |
Servicing of a water treatment system of a swimming pool is facilitated by an accessory that is placed over the intake/return port of the water treatment system to fluidically isolate that intake/return port from the water in the swimming pool. The accessory is held in place by water pressure exerted thereon and water in the accessory is drained so water from the swimming pool will not flow into the water treatment system when the accessory is in place. The accessory can be used with above-ground pools as well as other pools.
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