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Thread: Open and clear

  1. Back To Top    #1

    Join Date
    Jun 2008
    Location
    NW MO
    Posts
    185

    Open and clear

    We pulled the cover off yesterday and I took my first test readings this morning. We have not added anything except for water hauled in from the municipal water fill station. We created a frame using a ball, rope and nylon strapping to keep a mesh winter cover off the pool so we had no leaves on the cover to fight with and to make "tea". This is the best opening we have had since we got the pool in 2004.

    FC .05
    CC 0
    pH 7.2
    TA 70
    CH 130
    CYA 60
    Salt 1920-2100 (it read between the 2 lines so not sure which to go with)
    Borate 30

    Water temp is 59

    I am going to start with adding some chlorine to bring hte FC level up. I will then add some salt to get the SWG going. I think I will bring the borates up to 50 and the reassess the pH. pH hovered at 7.2 last season, so I will see what its trend is this year. I think I will add some CYA to bring it up greater than 60 so it doesn't fall below.

    Am I missing anything?
    24ft AGP 52in deep ~13,500 gal
    Hayward Sand Filter 250 lbs
    SWG
    1.5 HP pump

    425 gal stand alone QCA Hot Tub 15-20 yrs old

  2. Back To Top    #2

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

    Re: Open and clear

    You could downsize the pump and save on electricity. Unless you have some water features where you need the extra oomph to drive them.

    Oh, you meant chemistry-wise... with an AGP it all sounds good to me. pH 7.2 is on the low side but if it's stable and you're comfortable in the pool, I don't think it would be a real problem.
    --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

    Join Date
    Jun 2008
    Location
    NW MO
    Posts
    185

    Re: Open and clear

    I am not concerned about the pump at this point.
    24ft AGP 52in deep ~13,500 gal
    Hayward Sand Filter 250 lbs
    SWG
    1.5 HP pump

    425 gal stand alone QCA Hot Tub 15-20 yrs old

  4. Back To Top    #4

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

    Re: Open and clear

    I didn't think so... lame attempt at humor, sorry.
    --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

  5. Back To Top    #5

    Join Date
    Jan 2009
    Location
    Southern Nevada
    Posts
    37

    Re: Open and clear

    If you raise the borates won't the Ph change some?
    18,500 gallon, 16' x 38' freeform ig plaster w/ 7 ft spill over spa
    Pentair C&C+ 420 cart, Inteliflo 4 x 160 pump - new plaster on 5/5/09

  6. Back To Top    #6

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

    Re: Open and clear

    Borax on its own will raise pH, in fact it's the preferred method (other than aeration) as you add the least TA with borax, compared to other things that raise pH.

    Borates means adding either a huge pile of borax plus a load of muriatic acid to compensate for the pH increase, or adding boric acid which is essentially pH neutral.
    See: so-you-want-to-add-borates-to-your-pool-why-and-how-t4921.html
    --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

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