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Thread: Should I replace the sand after clogging the filter?

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    Shelley N's Avatar
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    Should I replace the sand after clogging the filter?

    In closing the pool last fall I think I did a really good job of clogging the sand filter. I thought I was going to waste, bypassing filtering, but I must have been incorrect because it stopped moving water after a while and there were a lot of leaves in the pool. We took the multiport off but it was clear. We threw down our toys and went home. Soooo, now comes the time to make some decisions. Do I vaccuum out the old sand and put it back in or replace it?
    Shelley
    Denver, CO

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    Mod Squad jblizzle's Avatar
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    Re: Should I replace the sand after clogging the filter?

    There is hardly ever a need to replace sand. Fire up the pump and do a good backwash. Then open up the filter and inspect the sand and run a garden hose gently through the sand to clean it and let the gunk spill out.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
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    Shelley N's Avatar
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    Re: Should I replace the sand after clogging the filter?

    I don't think that will work. It was completely plogged with no water movement when we closed in September. I've got to at least inspect what happened.
    Shelley
    Denver, CO

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    Mod Squad woodyp's Avatar
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    Re: Should I replace the sand after clogging the filter?

    What jblizzle suggested should be your first step on your "inspection" list.
    16x32x52" Steel Cornelius Miramar AGP Vinyl liner 13,100 gal. Buried 2 ft.
    2 Speed Hayward Power-Flo Matrix 85 g.p.m. 22" 250lb. sand filter hard plumbed
    Pool Rover Jr., Pool Blaster Max, Diver Dave TF100 Test Kit/Speed Stir
    Margaritaville Frozen Concoction Maker, Liqour Chiller, & Drink Mixer & Party Tub----Collect 'um all!

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    Shelley N's Avatar
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    Re: Should I replace the sand after clogging the filter?

    I'm so sorry everyone, I must be missing something. This is an above ground pool that I totally plogged the filter up with leaves when closing the pool last year. Once I fill the pool up in May with water to "test" the filter, I won't be able to take it apart in case I need to. Is there even a possibility I won't have to remove all the sand to remove all the debris/gunk I filled it with? I figured it would be cement by now.
    Shelley
    Denver, CO

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    Vette's Avatar
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    Re: Should I replace the sand after clogging the filter?

    You don't have valves that you can use to shut off the water supply to the pump equipment? If you have those, you should be able to take apart the filter even with the pool filled.
    11,700 gallon 21' round 54" deep all-resin AGP - June 2012
    Waterway 1HP 2-speed pump / 100 sq ft cartridge filter
    Hayward 150,000btu Natural Gas heater
    I use and recommend the TF-100 for testing

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    Charlie_R's Avatar
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    Re: Should I replace the sand after clogging the filter?

    Can you post some pics of your equipment?

    That would help us to help you better.
    15'x48" 4500 gallon Intex pool, buried 1.5 ft. Pac-Fab Dynamo 3/4 hp pump. Hayward S180T sand filter, bought used. Taylor K-2006 test kit. Rocket mass heater based wood fired pool heater.

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    Mod Squad woodyp's Avatar
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    Re: Should I replace the sand after clogging the filter?

    Are you QUITE sure that it is not a plugged line instead of the filter?
    16x32x52" Steel Cornelius Miramar AGP Vinyl liner 13,100 gal. Buried 2 ft.
    2 Speed Hayward Power-Flo Matrix 85 g.p.m. 22" 250lb. sand filter hard plumbed
    Pool Rover Jr., Pool Blaster Max, Diver Dave TF100 Test Kit/Speed Stir
    Margaritaville Frozen Concoction Maker, Liqour Chiller, & Drink Mixer & Party Tub----Collect 'um all!

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    Shelley N's Avatar
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    Re: Should I replace the sand after clogging the filter?

    I have a sta-rite JSAL210F sand filter. We have a back flow preventer, but it doesn't work 100% to prevent leaking. All the lines are removed and put under the deck for the winter and are clear.
    Shelley
    Denver, CO

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    Charlie_R's Avatar
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    Re: Should I replace the sand after clogging the filter?

    Are you sure that the leaves made it to the filter? Could some of the leaves gotten into the pump and clogged the impeller?

    I'd be thoroughly checking the pump for any problems before removing the sand. If you still think the filter is plugged after checking the pump, you can clean it as jblizzle has suggested.

    One question about your pump: Does it have a basket on the inlet? Has that been cleaned?
    15'x48" 4500 gallon Intex pool, buried 1.5 ft. Pac-Fab Dynamo 3/4 hp pump. Hayward S180T sand filter, bought used. Taylor K-2006 test kit. Rocket mass heater based wood fired pool heater.

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    Shelley N's Avatar
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    Re: Should I replace the sand after clogging the filter?

    I removed the basket because I was attempting to just pass the leaves through everything to the backwash hose. Hmmmm, I wounder if it is the pump. We bring it in every year and it's in the basement. Do I need to take something apart to see a problem? It's a 1.5hp dynamo. Ugh.
    Shelley
    Denver, CO

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    Mod Squad jblizzle's Avatar
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    Re: Should I replace the sand after clogging the filter?

    Yeah ... you can't do that. The basket is there for a reason. Likely your impeller is packed with leaves now. You should split the pump apart and clean out the impeller.
    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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    Shelley N's Avatar
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    Re: Should I replace the sand after clogging the filter?

    THANK YOU EVERYONE! The hubby took the pump apart yesterday and the pump was packed with leaves! We would have gone though all the filter rigamarole and come up empty if it hadn't been for you all. Love this place.
    Shelley
    Denver, CO

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    Charlie_R's Avatar
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    Re: Should I replace the sand after clogging the filter?

    Glad you got it sorted!
    15'x48" 4500 gallon Intex pool, buried 1.5 ft. Pac-Fab Dynamo 3/4 hp pump. Hayward S180T sand filter, bought used. Taylor K-2006 test kit. Rocket mass heater based wood fired pool heater.

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    Re: Should I replace the sand after clogging the filter?

    Quote Originally Posted by Shelley N View Post
    THANK YOU EVERYONE! The hubby took the pump apart yesterday and the pump was packed with leaves! We would have gone though all the filter rigamarole and come up empty if it hadn't been for you all. Love this place.
    hi shelly, do you have a leaf rake?

    I use mine during the fall and spring to clean the leaves up so they do not clog the filter.
    I do this before I vacuume the bottom silt to waste.
    18X36 Grecian 24400 est., pacfab sand Triton II, 1.5hp AOSmith, clormatic 2

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