Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 4 of 4

Thread: Filtration Question

  1. Back To Top    #1

    Join Date
    Jun 2015
    Lawton Oklahoma

    Filtration Question

    I have a GAME 4510 SandPro 1/2 HP sand filter running with my Intex 18 x 48 pool. I'm pretty sure this is plenty of pump. The cartridge filtration system that came with the pool last year was terrible. I had mutiple algae explosions and it was very frustrating. Right now I'm running both the sand filter and the cartridge filter (separate from each other) at least 11 hours a day. Am I running these pumps too much? Do I need both of them? Does it hurt to run both (besides my electric bill). The cartridge filter pulls in water from the middle of the pool while the sand filter is pulling in water from the very bottom. Any help would be appreciated.

  2. Back To Top    #2
    Casey's Avatar
    Join Date
    Apr 2007
    SW PA

    Re: Filtration Question

    Welcome to TFP.

    While running that set up, IMO, is a little over the top, you can do it if it makes you feel better. Be warned that your algae explosions, as you put it, have nothing to do with filtering and everything to do with dosing your pool adequately with enough chlorine to keep it away.

    I'd highly suggest you start reading a little bit of Pool School to help you understand what is going on. Start with ABC's of Pool Water Chemistry and look into the Test Kit Comparison. A clear pool requires a great testing kit.
    I'd bet you my bikini you'll never get TFP water from a pool store!

    24' Sharkline Venture De Filter

  3. Back To Top    #3
    Mod Squad tim5055's Avatar
    Join Date
    May 2014
    Columbia, SC

    Re: Filtration Question

    Casey hit the key point, algae is always a chemistry issue- never a filtration issue.

    You need to get one of the recommended test kits and SLAM the pool. Once you kill the algae maintaining the proper levels of FC will keep it away.
    TFP Moderator 39 X 18 23,000(ish) freeform gunite; built 2007ish; Pentair Triton II TR100 600lb Sand filter; 2 HP Pentair pump with 2.2 HP AO Smith single speed motor; 2 skimmers, 1 main drain, 4 returns w/waterfall, Stenner 45MHP2 3GPD running@ 60% - 15 gal Tank; heated by the sun CYA 200+ when I started - 50 now. Dolphin Supreme M5 Pool Cleaner. Hot Springs SX Spa, 285 gallon

  4. Back To Top    #4
    Mod Squad
    Join Date
    Aug 2012
    DFW, TX

    Re: Filtration Question

    Algae only grows when there is not enough chlorine in the pool. No amount of filtration will help. Chlorine level is set based on CYA level and the Chlorine CYA Chart. It is important to keep the chlorine level at target level or slightly higher at all times to keep the pool sanitized and algae free. Allowing the chlorine level to drop below minimum will leave your pool unsanitized and allow algae to start growing. It is safe to swim when your chlorine is above minimum and below shock level for your CYA.
    TFP Moderator
    If TFP helped you or saved you money - Become a TFP Supporter! <--Click here
    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts