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Thread: 1st Test, New Pool

  1. Back To Top    #1

    Join Date
    Jun 2009
    Location
    Ripon, Ca
    Posts
    1

    1st Test, New Pool

    I have had our new pool filled for approx. 3 weeks; PB is taking care of water chemistry for 1st 30 days. My water is not as clear as what i've invisioned. Here are my 1st test results. What should be added to pool to even chemistry numbers and also make my pool sparkeling clear?

    pH 8.0
    CH 220 ppm
    TA 140-180 ppm
    FC 1.0 ppm
    CC .4 ppm
    CYA 11-13 ppm

    Thank-you in advance...
    California
    IG
    16x37 geometric
    24k gallons
    Cartrige filter
    Pebblefina

  2. Back To Top    #2

    Join Date
    Jan 2009
    Location
    Cupertino, CA
    Posts
    1,966

    Re: 1st Test, New Pool

    Welcome to TFP!

    It looks like your pH and TA are on the high side, which can put you at risk for calcium scaling. You want to bring your pH down to 7.8 or less, 7.5 would be great. You can use the Pool Calculator to help you figure out how much acid to use to bring down the pH. (Pour acid slowly in front of a return jet with the pump on, so it will circulate into the water without damaging anything.)

    I'm not familiar with pebblefina but it would seem to be in the "plaster" class of pool surfaces, so for the first year or so you are likely to see the pH keep wanting to go up. You need to keep an eye on that and make sure it does not go above 7.8.

    What is the PB putting in the water? Your CYA is also pretty low, and it will be hard to maintain adequate FC unless the CYA comes up to somewhere in the 30-50 range.
    --paulr
    BBB "Intermediate Swimmer"
    IG plaster pool 18.5K gal, Hayward Pro-Grid DE filter, 3/4 HP Hydramax II; Polaris 380, 3/4 HP booster
    AG spa 325 gal, probably Sundance of some kind
    Water testing instructions on one page

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

    Re: 1st Test, New Pool

    Consider using trichlor chlorine tablets at first - they are acidic so they'll keep the ph in check and they will slowly build up your CYA levels to where they need to be. Eventually you will want to stop using them to prevent the CYA from getting too high, and switch to bleach. Ideally you should install in an inline chlorinator if you want to go this route, or a floater. Don't put tabs in the skimmer unless the pump runs 24/7...

    You should discuss this with your PB. You don't want to do anything that would void his warranty. If you are concerned with the clarity discuss this with him. There is an article in Pool School called start up new plaster, and keeping the PH in check is very important. Depending on the type of startup, brushing is important too. You should really communicate your concerns with the PB and make sure you are both on the same page.
    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
    Jul 2008
    Location
    Solon, Iowa
    Posts
    170

    Re: 1st Test, New Pool

    FC 1 and CC 0.4 and water not exactly sparkling -- I'd go to shock level (not that high given the low CYA) to be sure you don't have algae starting.
    15X30 AGP, Lomart beaded liner;
    1.5 HP Sta-Rite pump with 21 inch sand filter (Zeobrite media)
    Mineral Springs (Aquatrol) SWCG, Rigid PVC plumbing, 2 inch
    Four 4X12 Techno-Solis solar panels, rack mounted, Goldline Solar Controller

  5. Back To Top    #5
    frustratedpoolmom's Avatar
    Join Date
    May 2007
    Location
    SWSuburban Chicago, IL
    Posts
    11,965

    Re: 1st Test, New Pool

    You should try to avoid shocking a new plaster pool.
    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

  6. Back To Top    #6

    Re: 1st Test, New Pool

    You ought to study this http://www.troublefreepool.com/pool-...aster_start-up and then have a conversation with the PB to see what procedures are being followed now and what you are to do when it becomes your job to maintain.

    A quick review of that suggests brush, brush, brush, and keep up on acid to maintain pH and reduce dust. That ought to lower the TA as well over time.

    CYA can be raised fast or slow, PB may have a plan for that or may just be waiting on pucks to add slowly. Ask them.
    23,000 gallon in ground pool with rock waterfall and spillover spa, Aqualink control system, Polaris 380 cleaner, Purex Triton Clean&Clear Plus cartridge filter. Located in The Woodlands, Texas.

    Pool owner since Nov 2008, Trouble Free since April 2009. Happy to help when I can.

  7. Back To Top    #7

    Join Date
    Jul 2008
    Location
    Solon, Iowa
    Posts
    170

    Re: 1st Test, New Pool

    Whoops - I learned something new re: new plaster pools. I guess you'll have to try more modest increases in FC to handle anything that may be growing. 1 ppm FC and 0.4 CC along with claims of water less-than-clear seems consistent with needing a little more FC.
    15X30 AGP, Lomart beaded liner;
    1.5 HP Sta-Rite pump with 21 inch sand filter (Zeobrite media)
    Mineral Springs (Aquatrol) SWCG, Rigid PVC plumbing, 2 inch
    Four 4X12 Techno-Solis solar panels, rack mounted, Goldline Solar Controller

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