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Thread: adding water to pool question

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    propjetprop's Avatar
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    adding water to pool question

    How often do you find you need to add water to the pool? New pool, and my water level is a couple of inches below the half way mark of the tiles. When you add water from the garden hose, what effects on the chemestry do you find?

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    Mod Squad jblizzle's Avatar
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    Re: adding water to pool question

    Depends on the amount of evaporation and/or rain you get.

    Adding water should have a very minor impact on the chemistry. Most of the solids (CH, salt, CYA) should be unchanged (well CH may go up a little). And the fill water TA and pH could have a minor influence.
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    Oly's Avatar
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    Re: adding water to pool question

    Best to test your fill water so you can anticipate any effects prior to filling.
    For example my tap water is high in TA so I know my acid demand will be rise slowly when I top off the pool.
    Also I see a slight dip in FC levels due to the fact that municipal tap will have a low FC, .04ppm compared to the pool at 7ppm
    My fill water is also fairly low in CH at 110 so any rise is minimal.
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