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Thread: Is Pump too Powerful for Intelichlor?

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    Join Date
    Mar 2011
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    Is Pump too Powerful for Intelichlor?

    Hi, I'm new to the forum. My pool was completed on 12/4/2010. It was designed as a salt water pool but we decided in the middle of construction to use Trichlor pucks. Now I realize that was a mistake. In 9 weeks my CYA level hit 100 ppm and I replaced half the water. For now I'm using 6% bleach and I plan to continue with bleach until it gets too hot. This summer I plan to install an intelichlor IC20 to go with the rest of the Pentair equipment and the Easytouch 4 controller. My concern is whether my 2.0 HP Whisperflo (single speed) is too powerful to generate chlorine. The Intelichlor manual says that the flow rate should be between 25 and 105 gpm. My PVC pipes are 2". I've tried to figure the flow rate by referring to the Whisperflo manual but it makes little sense to me. Any help would be appreciated.
    9,200 gal. Gunite Luna Quartz French Grey pool with spill over spa, two fountains on tanning ledge (rarely used)
    Pentair Whisperflo 2HP, Pentair CCP Cartridge 420 Sq. Ft., Polaris 280 with booster pump
    Pentair EasyTouch 4, RayPak LoNox 266k Natural Gas heater, Aqua Rite SWCG T Cell 9, Borates, TF-100 test kit

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    JasonLion's Avatar
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    May 2007
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    Re: Is Pump too Powerful for Intelichlor?

    Welcome to TFP!

    The actual flow rate depends on a large number of details of your plumbing, so it is impossible to give you an exact number. Still, I would expect that your are likely to be in the 100 GPM range, and thus either close to the limit or just over it. To avoid any problems, the SWG can be plumbed with a bypass loop, so the SWG gets the flow rate it wants and the rest goes through the bypass. There is a diagram of how to do this in the IntelliChlor manual.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    Re: Is Pump too Powerful for Intelichlor?

    Why is there a 2 hp pump on a 9,200 gallon pool? It might be better if you reduced the hp quite a bit.

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    Re: Is Pump too Powerful for Intelichlor?

    Thanks.

    JamesW, long story . . .
    9,200 gal. Gunite Luna Quartz French Grey pool with spill over spa, two fountains on tanning ledge (rarely used)
    Pentair Whisperflo 2HP, Pentair CCP Cartridge 420 Sq. Ft., Polaris 280 with booster pump
    Pentair EasyTouch 4, RayPak LoNox 266k Natural Gas heater, Aqua Rite SWCG T Cell 9, Borates, TF-100 test kit

  5. Back To Top    #5

    Join Date
    May 2007
    Location
    South Central NJ
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    Re: Is Pump too Powerful for Intelichlor?

    If you have a spa and an open relay, at least consider putting a 2 speed relay in the automation and a 2 speed motor on the pump.

    Advantages:

    Lower power consumption during filtration.
    Slower moving water will yield better filtration
    Less stress on your equipment = longer lasting

    If there is no spa, a smaller 2 speed motor can be used.

    If there are no extra relays available, a VS-3050 will be a better option.

    Scott
    Owner of - PoolGuyNJ LLC
    Expert Pool and Spa Repairs, Renovations, and Augmentation. Helping people decide what is the right gear for meeting their needs. Expectations Set, Expectations Met, No Surprises.

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