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Thread: Lost a lot of water, new levels.

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    JesseWV's Avatar
    Join Date
    Apr 2011
    Location
    North Central WV
    Posts
    526

    Lost a lot of water, new levels.

    So this morning I wake up to go look at my sparkling pool and to my horror the water level was below the return outlet! The pump was still running and had been for several hours. Luckily it didn't burn up because there was some leftover water in the pump basket which was almost boiling!

    I figured out that the problem was that someone had cross threaded the drain fitting on the bottom of the filter housing and apparently 20psi was it's limit before starting to spray everywhere.

    I performed the needed repairs and refilled the pool to where it needed to be. Then I finally got around to testing the water like I had planned hours earlier.

    Just to add some perspective, at the beginning of the season (5/15) my readings were:

    FC:9
    CC:0.5
    TC:9.5
    pH:7.6
    TA:120
    CH:50
    CYA:90
    Temp:70F

    Until mid June I was adding acid once a week and aerating to get my TA down to 80 which I was quite happy with. With recent rainfall amounts over 10 inches and the inadvertent draining and refilling my high CYA is also down to a manageable level. Unfortunately now my TA is low!

    Current readings:

    FC:6
    CC:0
    TC:6
    pH:7.4
    TA:50
    CH:50
    CYA:40
    Temp: 84F

    From what I understand TA is supposed to buffer pH changes. The pool calculator says 80-120 for target TA. If my pH isn't budging do I even need to worry about it?
    16k gal, 28'x3.5', Vinyl A/G, 1hp Pentair Dynamo 2-speed Pump, Hayward S160T Sand Filter, Intermatic HB800RCL Digital Timer, Intex 8110 SWG, TF-100 Test Kit, SpeedStir Author: Jesse's Graphical Pool Testing Log

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    Mod Squad JohnT's Avatar
    Join Date
    Apr 2007
    Location
    SW Indiana
    Posts
    9,089

    Re: Lost a lot of water, new levels.

    If your pool is happy at 50ppm, you are fine.
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

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