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?     Asked on 6/4/2019 by Don O'Neill

I actually have 2 issues that I believe are related. 1., Losing some sand when I backflush, not a lot, but noticeable, maybe 1/2 cup. 2., as the filter gets dirty, the pressure drops and water flow is reduced. After backflushing, pressure returns to normal, about 15PSI. System is Aquaflow 1HP 2 sp, and a Hayward S180T filter.

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A  Answered on 6/8/2019 by InyoPools Product Specialist Lennox H.

Hi, Don. Losing some sand while backwashing is normal, how much is based on the pump's flow rate. The second issue is normal when the filter gets dirty, the water pressure and flow decrease and the filter pressure increases. 
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