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Thread: pump/filter to waste?

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    mariane's Avatar
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    pump/filter to waste?

    Always wondered: why use "pump to waste" or "filter to waste" while vacuuming? Why not just leave it on filter setting? Does it change the way debris is collected, and bypassing the filter is better? Or vacuuming algae into the filter is a bad practice (which the pool store said)?
    Thanks. Yours is my "go to" site for all pool info.
    16 x 28 Doughboy Mystic Garden AGP with 7' deep end (used expandable vinyl liner) ~11,800 gals. Deep end main drain. Thru-the-wall skimmer, one return at deep end. Media Master 150# sand filter. Doughboy PowerPak II pump, 1 hp. Pentair MinimaxCH 150m natural gas heater. Polaris 65 when it feels like working . TF-100 test kit. No longer 'pool stored' 5 years and counting. In sunny but fickle metro-Detroit.

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    Re: pump/filter to waste?

    A pool with a whole lot of debris will quickly clog up most filters....just too much junk. Vacuum to waste puts the junk overboard and it never gets to your filter. Generally, wastes quite a bit of water if you have a strong pump.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
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    Mod Squad woodyp's Avatar
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    Re: pump/filter to waste?

    I use a whoooole lotta less water when vacuuming just plain old dirt to the filter and backwashing occassionally. I got to have a bunch of "extra" water to do the waste thing.
    16x32x52" Steel Cornelius Miramar AGP Vinyl liner 13,100 gal. Buried 2 ft.
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    mariane's Avatar
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    Re: pump/filter to waste?

    Thanks for the replies duraleigh and woodyp. Good to know.
    Is the pool store correct in saying "never vacuum to filter when trying to clear up algae that is settled on the bottom of the pool (but no other debris)?

    Thanx
    16 x 28 Doughboy Mystic Garden AGP with 7' deep end (used expandable vinyl liner) ~11,800 gals. Deep end main drain. Thru-the-wall skimmer, one return at deep end. Media Master 150# sand filter. Doughboy PowerPak II pump, 1 hp. Pentair MinimaxCH 150m natural gas heater. Polaris 65 when it feels like working . TF-100 test kit. No longer 'pool stored' 5 years and counting. In sunny but fickle metro-Detroit.

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    Re: pump/filter to waste?

    Never say never! I cannot afford the loss of water so I only vacuum to filter. Others have a different situation.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Richard320's Avatar
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    Re: pump/filter to waste?

    Quote Originally Posted by mariane
    Thanks for the replies duraleigh and woodyp. Good to know.
    Is the pool store correct in saying "never vacuum to filter when trying to clear up algae that is settled on the bottom of the pool (but no other debris)?

    Thanx
    No.

    If it's great chunks of leaves and twigs, you'd want to keep that out of the filter. But dead algae buildup is pretty fine stuff, and the filter is designed to catch it. When the gauge starts climbing and the flow slows down, that's a good sign. It means the filter's working. Then you backwash. The filter's designed to be backwashed - that's why there's a setting called, not surprising, backwash.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
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    mariane's Avatar
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    Re: pump/filter to waste?

    Thanks for all the great replies. You are all great!

    Should have known better than to believe the one guy at the pool store who does not even own a pool.

    Yep. That's right.
    A guy who works at the pool store who does not even own a pool.

    16 x 28 Doughboy Mystic Garden AGP with 7' deep end (used expandable vinyl liner) ~11,800 gals. Deep end main drain. Thru-the-wall skimmer, one return at deep end. Media Master 150# sand filter. Doughboy PowerPak II pump, 1 hp. Pentair MinimaxCH 150m natural gas heater. Polaris 65 when it feels like working . TF-100 test kit. No longer 'pool stored' 5 years and counting. In sunny but fickle metro-Detroit.

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