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Thread: Cartridge Filter slows down flow too much

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    Cartridge Filter slows down flow too much

    I have an inground 6k fiberglass pool, with a Jandy 1 1/4 HP pump and Tropicflo cartridge filter. I'm needing to clean my filter weekly to keep the pressure from building. I was dumping some water and left the cartridge out and flow was amazing. I've had the same problem every year, with different brand cartridge replacements, We only have a 4 month pool season here in Michigan and I change them annually. Any ideas? Thanks
    Michigan- 6000 gallon inground fiberglass, 1 1/4 hp Jandy pump, Tropic flo 100 cart. filter, Hayward gas heater. Open Memorial day to Labor day.

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    pabeader's Avatar
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    Re: Cartridge Filter slows down flow too much

    How are you maintaining your pool? Pool$tore or TFPC?
    Bob - Palm Beach by San Juan Pools. approx 5000 gals., Pentair 320 cartridge filter (all new guts installed by me), Goldline SWG, 'New to me' Kreepy Krauly Sand Shark, Intermec 104 Timer Test kit: TF-100 w/Speed Stir

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    Re: Cartridge Filter slows down flow too much

    All I buy from the pool store is liquid chlorine, I do have it professionally closed every winter.
    Michigan- 6000 gallon inground fiberglass, 1 1/4 hp Jandy pump, Tropic flo 100 cart. filter, Hayward gas heater. Open Memorial day to Labor day.

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    mas985's Avatar
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    Re: Cartridge Filter slows down flow too much

    If you filter is clogging frequently, that usually mean you are fighting an algae bloom (and yes even if your pool looks "fine"). Have you tried an OCLT?

    Pool School - Perform the Overnight FC Loss Test (OCLT)
    Mark
    Hydraulics 101; Pump Ed 101; Pump/Pool Spreadsheets; Pump Run Time Study; DIY Acid Dosing; DIY Cover Roller
    18'x36' 20k plaster, MaxFlo SP2303VSP, Aqualogic PS8 SWCG, 420 sq-ft Cartridge, Solar, 6 jet spa, 1 HP jet pump, 400k BTU NG Heater

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    Re: Cartridge Filter slows down flow too much

    What are your current test numbers?
    What does it look like when you clean the filters? Hard crusty stuff or soft slimy stuff?
    Bob - Palm Beach by San Juan Pools. approx 5000 gals., Pentair 320 cartridge filter (all new guts installed by me), Goldline SWG, 'New to me' Kreepy Krauly Sand Shark, Intermec 104 Timer Test kit: TF-100 w/Speed Stir

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    Re: Cartridge Filter slows down flow too much

    I would definitely do the OCLT, additionally If you get a fair amount of visible debris a hairnet in the skimmer can cut down on the amount that gets to the filter a bit. The biggest befit is not having to empty the pump basket I only do that every couple of months if even that often.
    12,300 Gallon, IG PebbleFina, 3 ft sheer, 2 Jandy nicheless LED lights, Jandy Pro 1.5HP VS pump (A.O. Smith Motor), PB4-60 Booster pump, Polaris 280, Jandy cv340 cartridge filter, Zodiac Z4 control panel W/iAquaLink, Stenner pumps for chlorine & MA connected to WiOn WiFi switches, TF-100. You can support TFP with AmazonSmile just click the link!

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    Re: Cartridge Filter slows down flow too much

    While a 100 sq ft cart filter works it is really small, I have 100 sq ft cart on my hot tub, it has 700 gallons

    A 320 sq ft would work way better for you but if you have algae it will still clog up, how are you testing your water?

    I hope this helps
    Pool: Intex 16x32 15000 gal, 2 speed 340042, Pentair CC320 Filter, CircuPool SJ45 Salt System, Intermatic PE653RC; Hot Tub: 650 Gal SWG Megachlor
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    Re: Cartridge Filter slows down flow too much

    I have to Slam my pool every year I open it, extremely cloudy for about 2 weeks.

    - - - Updated - - -

    The filter is mostly white cloudy water that comes out of it, very minimal slime or hard particles.

    - - - Updated - - -

    I have a Taylor kit, FC & TC are equal.
    Michigan- 6000 gallon inground fiberglass, 1 1/4 hp Jandy pump, Tropic flo 100 cart. filter, Hayward gas heater. Open Memorial day to Labor day.

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