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Thread: Replacing a sand filter and pump with a cartridge filter and pump

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    Replacing a sand filter and pump with a cartridge filter and pump

    Hi, I am looking to change my sand filter and pump with a Hayward X-Stream Cartridge filter and pump.

    My pool is 24' round 52" depth
    200 LBS sand filter
    1.5HP pump

    What size Hayward X-Stream Cartridge filter should I get?

    100sqft with 1 HP pump or

    150sqft with 1.5 HP pump?

    Thanks,

    Jim

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    Mod Squad jblizzle's Avatar
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    Re: Replacing a sand filter and pump with a cartridge filter and pump

    Welcome to TFP!!!

    Why do you want to change the pump and filter? Is there anything wrong with them?

    For a pool your size (~13500 gallons), we would generally recommend a cartridge filter around 200+ sqft. You may be able to get away with something smaller if you have a short season and low debris. You can not go to big on a cartridge filter, it just reduces the frequency of having to clean it.

    Small pumps cost less money to run and if you have no high water flow needs, then stick to a smaller pump (1HP). And for more electrical savings, look at a 2-speed 1HP motor ... either to put on your existing pump or a new pump.
    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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    Re: Replacing a sand filter and pump with a cartridge filter and pump

    I want to change because it's difficult for me to change the sand in the filter and the pump broke at the end of last season.
    Our season is only 3 months, so I was going to just replace the cartridge once a month and then rotate between the two cartridges for the season.

    Thanks.

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    Mod Squad jblizzle's Avatar
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    Re: Replacing a sand filter and pump with a cartridge filter and pump

    You should never need to change the sand in a sand filter. There is also no need to change a cartridge on a schedule. You should base your filter cleaning on when the pressure rises 20-25% over the clean pressure.

    I know a LOT of members get the 1HP Power-flo Matrix 2-speed pump (SP15922S) for their AG pools. That will work for just about any filter size you want ... again larger being better.
    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
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    Re: Replacing a sand filter and pump with a cartridge filter and pump

    I had to change the sand in my filter after the first two years, then I made the decision to just change it each year, because during the second year the pool water was cloudy and that was the only thing that would correct the problem. If I change the cartridge on a schedule then I shouldn't have any water problems. I like to think proactively and not wait until the water has a problem.

    Thanks for the recommendation.

    Jim

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    mrcarcrazy's Avatar
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    Re: Replacing a sand filter and pump with a cartridge filter and pump

    Quote Originally Posted by ahrjmrecr View Post
    I had to change the sand in my filter after the first two years, then I made the decision to just change it each year, because during the second year the pool water was cloudy and that was the only thing that would correct the problem. If I change the cartridge on a schedule then I shouldn't have any water problems. I like to think proactively and not wait until the water has a problem.

    Thanks for the recommendation.

    Jim
    You know you can backwash sand filters right? That's the way you "clean" the sand.
    IG gunite/plaster pool/spa Started 1/17/14, Plastered 5/16/14
    Size: 12'-21'x39' free form, depth ranging from 4' to 7, attached 6 person spa with spillover.
    Equipment: Whisperflo 2hp pump, Pentair 30" sand filter, Pentair Mastertemp 400k BTU heater, 1hp Whisperflo for waterfalls, and a blower for spa floor

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    Mod Squad jblizzle's Avatar
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    Re: Replacing a sand filter and pump with a cartridge filter and pump

    I never said wait to have a problem. I said that you should use the pressure reading to know when it is time to clean the filter (whether you backwash or swap cartridges). If you are doing it once a month, that may be more work than required.

    Sand should NEVER need to be replaced ... if the water got cloudy, it was likely a chemistry issue and not a filter issue.

    What test kit are you using? Should I assume one of the Recommended Test Kits since you are wanting to be proactive about pool maintenance?
    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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