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Thread: what are the consequences of not using the filter

  1. Back To Top    #1

    Join Date
    Apr 2011
    Location
    Houston, TX, USA
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    101

    what are the consequences of not using the filter

    hey all,

    i am on vacation and my neighbor is using the pool. Apparently our DE filter pressure went from 10 to 18psi in 2-3 days for no apparent reason. I asked him to stop the pump and put the filter on recirculate.
    Since i have an SWG that will pour chlorine into the pool and my neighbor has the test kit to add any other chemicals needed (like muriatic acid for example), what are the consequences of bypassing the filter for extended periods of time (3 weeks for example). I assume algae won't develop b/c the chlorine will keep it in check.

    the pool is still crystal clear and all the chemicals are within correct limits.

    cheers
    14500 gallon plaster pool (replastered in May 2009) : 32ft.L x 4ft.D x 14ft.W
    Pentair FNS Plus 48 sqft DE filter --> New filter grids as of May 2011. I use DE for them.
    Polaris 280 & Aquabot T-Jet Turbo at 2hrs/week. 20ft by 4ft solar heating panels
    Circupool RJ30 SWG set at 80% output & Pentair SuperFlo 1hp 2speed running 8 hrs/day

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    frustratedpoolmom's Avatar
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    May 2007
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    SWSuburban Chicago, IL
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    11,965

    Re: what are the consequences of not using the filter

    It may get hazy/cloudy and dirt/dust/crud will settle on the bottom.
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
    http://www.PerfectlyClearPoolService.com

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    duraleigh's Avatar
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    Apr 2007
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    Re: what are the consequences of not using the filter

    filtration is a really important element of pool water management. A day or so if you started with a VERY clean pool would probably do no harm but I think three weeks is asking for trouble and I don't think you are starting with a clean pool.

    Pressure rises because of resistance. Your filter is likely collecting stuff like dead algae (which it is supposed to do) My guess is you need to shock your pool but, without accurate test results, that's only a guess.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Mod Squad Bama Rambler's Avatar
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    Re: what are the consequences of not using the filter

    It's going to get pretty bad in three weeks. I'd be worried about why the pressure rose so quickly. Is there any way you can get the filter backwashed and recharged? Is there any way you can get a set of test results?
    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

  5. Back To Top    #5

    Re: what are the consequences of not using the filter

    To add a desenting opinion:

    Every winter, I let my pool sit, uncovered, collecting leaves, and dirt and worms, and these little squiggy creatures who I know not what they are.

    About 5 months at least, it sits, with no chemicals added, NO filtration or water cirulation.

    I generally get things pretty well cleared up in about a week. It's not easy, but it's also not all that complicated.

    I'd say that if you have your water circulating, and your friend keeps the water balanced. I wouldn't foresee any kind of disaster.

    You'll come home, get your filter fixed, vacuum out your debris, balance the water, shock the pool, and you should be good in a few days, tops. In fact, I would likely want to do all that anyway.

    Now... I would probably advise your friend not to use the pool while it is in that condition.

  6. Back To Top    #6

    Join Date
    Apr 2011
    Location
    Houston, TX, USA
    Posts
    101

    Re: what are the consequences of not using the filter

    thanks for all the suggestions folks. i might give ask him to backwash the filter and add DE after running a full set of tests to see if the pool water chemistry is good.

    cheers.
    14500 gallon plaster pool (replastered in May 2009) : 32ft.L x 4ft.D x 14ft.W
    Pentair FNS Plus 48 sqft DE filter --> New filter grids as of May 2011. I use DE for them.
    Polaris 280 & Aquabot T-Jet Turbo at 2hrs/week. 20ft by 4ft solar heating panels
    Circupool RJ30 SWG set at 80% output & Pentair SuperFlo 1hp 2speed running 8 hrs/day

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