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Thread: Closing with a sand filter

  1. Back To Top    #1

    Join Date
    May 2012
    Baltimore, Maryland

    Closing with a sand filter

    Had a great year with the new sand filter, worked excellent. Now it is time to close.

    I will be using the pump to drain most of the water as the drain plug on the pool just takes way to long.

    Should I drain the pool using the backwash setting to clean all the junk out of the filter while draining the pool aswell?


    Should I just drain on waste setting?

    I haven't decided if I am going to re-use the sand next year as I have not opened the filter to look at the condition of the sand. I would assume the sand is ok to use again next year.
    15'x4' Metal Frame Intex 3yo (2nd year winterized) 16" 2650gph intex sand filter, Thru wall skimmer, dual inlet/single outlet, 1000gph intex pump (heater) Solar Cover TF-100 testkit, TFPC

  2. Back To Top    #2
    linen's Avatar
    Join Date
    Jul 2010
    Twin Cities, MN

    Re: Closing with a sand filter

    Give it a good long backwash and then change it to waste (for the rest of the drain) to prevent stuff from building up on the wrong side of the sand.

    Sand typically should never need does not wear out. However, it is a good idea to do a thorough cleaning yearly...see:
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

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