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

Thread: Adding Polyquat 60 at higher FC?

  1. Back To Top    #1

    Adding Polyquat 60 at higher FC?


    Getting ready to close here in MD. I shocked and now my FC is at 14, cya is 90, and ph is 7.75. The instructions on the polyquat say to add with FC at 1 to 3ppm, but since the pool is covered and it's cold, that FC is not wanting to drop. I really want to take care of closing the lines this w/e. Would anything really bad happen adding the poly at these chem levels?

    40K gallon plaster, S8M150 sta-rite system 3 cartridge filter, Paramount infloor cleaning system with 9 port and debris canister, Pentair pump.

  2. Back To Top    #2
    Mod Squad zea3's Avatar
    Join Date
    Jul 2009
    Houston, Texas

    Re: Adding Polyquat 60 at higher FC?

    You are only about 2ppm above the high end of normal for your pool. There shouldn't be any problem with adding Polyquat now. The Polyquat label uses the industry standard of "normal" which is 1-3ppm of FC without regard for the CYA level. In reality there are very few pools where 1-3ppm is "normal".
    TFP Moderator
    Helpful links: TF Test Kits,TFP Pool School, PoolMath
    Vogue 21' round AG, Pentair 1 hp 2 speed pump, 36 sq ft DE filter, Hayward S180T 150# sand filter, Houston, Texas
    Love TFP? Become a
    TFP Supporter!

  3. Back To Top    #3
    pwrstrk's Avatar
    Join Date
    Aug 2012
    Elverson Pa.

    Re: Adding Polyquat 60 at higher FC?

    You'll be ok to add it. That 1-3 ppm of FC is a joke as far as I'm concerned.
    24'x54" AG Morada RTR (by wilbar) 13'500 gal. Hayward Powerflo Matrix 1hp 2 speed. Hayward Perflex EC65 DE filter.

  4. Back To Top    #4
    Mod Squad Patrick_B's Avatar
    Join Date
    Jun 2011

    Re: Adding Polyquat 60 at higher FC?

    Just remember, 1-3 is for pools with no Cya. When that condition exists, 1-3 is a substantial amount of FC. Shame that gov and industry stds can't seem to grasp this and implement it into the language and standards.
    TFP Moderator
    Essential Links:
    TF-100 Test Kit, ABC's Of Pool Chemistry, Test Kits, SLAM Your Pool
    28K Gal IG FreeForm, CLI Quartz, Flagstone, 36"SF, Pentair VS Pump, EasyTouch W/Remote, Rheem 400KBTU Htr

Posting Permissions

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