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Thread: Backwash

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    Backwash

    Pool store is coming by in a few days to change out the sand in my filter and I was curious if I need to raise the water level above the half skimmer level? Would he/she backwash if their putting new sand in?
    18600 Gallon In Ground
    Vinyl liner
    Aqua Genie Skimmer/Return
    Purex Triton Challenger wet end with Emerson 2EZ Speed Two-Speed with Timer Motor 3/4HP #EB2980T
    Sta-Rite 145361 Cristal-Flo II High-Rate Sand Filter 22Inch
    Taylor K-2006

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    Mod Squad Bama Rambler's Avatar
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    Re: Backwash

    Why are they changing the sand?

    They will need to rinse the sand which is going to use some water, but not as much as a backwash would use. I'd raise it a little bit.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
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    Mod Squad jblizzle's Avatar
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    Re: Backwash

    Unless there is some strange circumstance, there should be no reason to have to change the sand.

    You can do a thorough cleaning by opening the top and running a hose gently down in the sand and allow the junk to flow out the top of the filter.
    Jason, TFP Moderator
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    Re: Backwash

    The sand was changed out 4 years ago according to the previous owner. May not do it since I am debating about switching out the filter next year. It as a Pac-Fab Super Flow PF-50. It looks like it has some years on it but if it works fine maybe I don't need to.
    18600 Gallon In Ground
    Vinyl liner
    Aqua Genie Skimmer/Return
    Purex Triton Challenger wet end with Emerson 2EZ Speed Two-Speed with Timer Motor 3/4HP #EB2980T
    Sta-Rite 145361 Cristal-Flo II High-Rate Sand Filter 22Inch
    Taylor K-2006

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    Mod Squad JohnT's Avatar
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    Re: Backwash

    Quote Originally Posted by stew930
    The sand was changed out 4 years ago according to the previous owner. May not do it since I am debating about switching out the filter next year. It as a Pac-Fab Super Flow PF-50. It looks like it has some years on it but if it works fine maybe I don't need to.
    No reason at all to change 4 year old sand unless there are problems.
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

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    Re: Backwash

    Thanks I will cancel the order. Should I change out that sand filter with a new modern one or keep it if it works? I do plan on installing a 2 speed or variable speed pump in a few weeks.
    18600 Gallon In Ground
    Vinyl liner
    Aqua Genie Skimmer/Return
    Purex Triton Challenger wet end with Emerson 2EZ Speed Two-Speed with Timer Motor 3/4HP #EB2980T
    Sta-Rite 145361 Cristal-Flo II High-Rate Sand Filter 22Inch
    Taylor K-2006

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    Mod Squad jblizzle's Avatar
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    Re: Backwash

    If it is working to your satisfaction there is no reason to change it. Hard to say if a newer one would do a better job ... I kind of doubt it as there really is no "advanced technology" involved in a sand filter
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

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    Mod Squad Bama Rambler's Avatar
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    Re: Backwash

    That filter's a little small for a 25,000 gallon pool but, as said earlier, if it's working there's no hurry about changing it out. It's obsolete so it's a good thing to be looking and deciding on what you want so when it finally goes you'll be ready to replace it.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

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    Re: Backwash

    Quote Originally Posted by Bama Rambler
    Why are they changing the sand?

    They will need to rinse the sand which is going to use some water, but not as much as a backwash would use. I'd raise it a little bit.
    Backwash hose. Using search to find a hose/pvc to use for the Backwash outlet on a Intext 14", 1.6 gph Sand Filter. Can you direct me. Thxs!
    Intex APG 13 ft dia. Four yrs ago we placed it under a tree- direct/filtered sun. Reside in TX. Installed Sand Filter-2012/Pump is a blazing 1.6 GPH :)

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