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Thread: 1 week old plaster - when to start raising CH?

  1. Back To Top    #1

    Join Date
    Jun 2010
    Location
    Dripping Springs, TX
    Posts
    125

    1 week old plaster - when to start raising CH?

    This BBB stuff works!

    I'm a new pool owner - just put water in a week ago.
    Got some great advice on the forum, and it's really cool to add the acid, see the pH and TA go down, then bring pH back up with aeration.
    Very confidence inspiring.

    FC was low today (.5) so I added my first liquid bleach treatment (based on pool calculator).

    My question is this: CH was 130 when I tested on Monday, and I know I need to raise it. Is it OK to start adding calcium chloride yet?

    SF
    =====================================
    17K gallon IG freeform Pebble-Tec pool w/ raised spa/waterfall, Hayward 6020 DE filter, Tristar 1 HP circulation pump, Tristar 2.5 HP spa pump, Silencer 2hp blower, Aquarite SWG, Polaris 280 w/ booster pump, Hayward Universal H-Series 400K LPG heater, Ultrapure Ozonator 25, Aqualogic PS-8

  2. Back To Top    #2

    Join Date
    Nov 2009
    Location
    Indialantic, FL
    Posts
    323

    Re: 1 week old plaster - when to start raising CH?

    I would say no to raising the calcium at this point in time.

    My PB said not to even bother testing for 4 weeks, and the plaster OEM states in their start up procedures to wait "several" weeks (whatever several is/are?).

    The CH should continue to rise as the pool ages, you brush the walls, etc.
    Geometric 16X36', 16K gal, shotcrete, exposed aggregate plaster, acrylic coated concrete deck/cantilever coping;
    Pentair equipment suite (EasyTouch w/wireless, 2 Intellibrites, Intelliflo VS-3050, C&C 200 Filter, IC-40 SWG);
    Heliocol solar panels, Rocky's Roller, Blue Diamond robot

  3. Back To Top    #3
    frustratedpoolmom's Avatar
    Join Date
    May 2007
    Location
    SWSuburban Chicago, IL
    Posts
    11,965

    Re: 1 week old plaster - when to start raising CH?

    Don't adjust CH or TA for 30 days. No need to aerate to raise PH, the plaster curing will do that alone.

    Simple keep the PH at 7.4-7.6 with acid, the TA may rise on it's own too and the acid will keep it in check.

    Have you added CYA? Bleach and CYA should be added slowly with new fill.

    Have you read the Pool School article on Startup New Plaster?
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
    http://www.PerfectlyClearPoolService.com

  4. Back To Top    #4

    Join Date
    Jun 2010
    Location
    Dripping Springs, TX
    Posts
    125

    Re: 1 week old plaster - when to start raising CH?

    Thank you for the information.

    We run our spa waterfall a good bit, which gets my pH rising, so I have been using acid to control pH (and TA as a side effect).

    I added my first batch of CYA today (socks in the skimmers).

    I have indeed read the Startup article in pool school (many times in fact!). As a newbie, I'm never certain if I am that special case with
    oddball water readings. My pool is in direct sun, getting a lot of use, and it is really going through the liquid chlorine right now.

    SF
    =====================================
    17K gallon IG freeform Pebble-Tec pool w/ raised spa/waterfall, Hayward 6020 DE filter, Tristar 1 HP circulation pump, Tristar 2.5 HP spa pump, Silencer 2hp blower, Aquarite SWG, Polaris 280 w/ booster pump, Hayward Universal H-Series 400K LPG heater, Ultrapure Ozonator 25, Aqualogic PS-8

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