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Thread: Intex Sand Filter Backwash Question

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    Join Date
    Feb 2016
    Location
    new zealand
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    1

    Intex Sand Filter Backwash Question

    I have got an intex 16 foot above ground pool and each time i have been doing a backwash sand comes out thru the exit point of the pump, it says you are supposed to turn pump on when doing backwash but if i do so the sand flies out thru the outlet and if i let it continue to go out then there would be no sand left in the housing. even just with it on backwash and the cap off with pump off sand still comes out. intex nz sent me a new pump which i assembled yesterday and the new one does the same thing.. has anyone else had this issue? the pump is a sand filter pump model SF90220 .

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    Casey's Avatar
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    Apr 2007
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    SW PA
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    10,157

    Re: Intex Sand Filter Backwash Question

    Welcome dazz. I'm not very fluent on sand filters but someone will be along to help you.
    I'd bet you my bikini you'll never get TFP water from a pool store!

    24' Sharkline Venture De Filter

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    Join Date
    Dec 2015
    Location
    Hawera, Taranaki, New Zealand
    Posts
    443

    Re: Intex Sand Filter Backwash Question

    Hi Dazz and welcome.
    Have you checked out the information in pool school for cleaning your filter? Did you perhaps overfill your filter with sand? I only got my filter on Thursday so cant help much except to point out these links and say someone who knows more will be along shortly
    Deep Cleaning a Sand Filter
    Pool School - Maintenance and Cleaning of Pool Filters
    6000 gal, AG vinyl, Intex ultra frame 16ft, 1200 Gallon Sand Filter, DIY Solar, Clear Choice Labs Testing Kit

  4. Back To Top    #4

    Join Date
    Jul 2014
    Location
    Oakbank, Canada
    Posts
    383

    Re: Intex Sand Filter Backwash Question

    You say they sent you a new pump, was it just the pump or the pump and filter?
    Sounds like you have a filter issue, not the pump.

    Just trying to narrow things down here a bit.
    Ultra 16', Intex Sand filter/pump combo, 8' x 20' solar panels, solar blanket w/roll tube, 1" extruded foam floor with Gorilla pad, Liquid chlorine and stabilizer.

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    Wheels007's Avatar
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    Aug 2015
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    Winchester VA
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    Re: Intex Sand Filter Backwash Question

    Inside your filter there are plastic pieces called laterals. If these get cracked they can allow sand through. They are just plastic so it's not hard to break them when you fill it with sand. I don't have a diagram for the intex but I'll post a photo of a hayward filter so you can visualize what I'm talking about.
    Duck's Swimming Pool Service & Repair
    Winchester, Virginia

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    Wheels007's Avatar
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    Aug 2015
    Location
    Winchester VA
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    42

    Re: Intex Sand Filter Backwash Question

    Duck's Swimming Pool Service & Repair
    Winchester, Virginia

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