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Thread: auto top up - water source

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    auto top up - water source

    Hello all,
    Wondering if someone would advise on water source for our auto pool water top up. We live in an area where the water is very hard and we need a water softener for all household lines.

    For the auto top up, would it be wise to T off after the water softener or before?

    We will have an automatic Coverstars cover and it will be close during non use. So I'm hoping the need to top up due to evaporation is minimal.


    If anyone has any knowledge on this front, would really appreciate some guidance.

    Thanks

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    Re: auto top up - water source

    Generally, it is a great idea to use your water softener for top off (refill) water.

    Depending on the iron content and CH of your water, it could helpo you maintain your pool chemistry much more easily.

    Can your post CH and Iron content of your fill water before the softener?
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
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    Patrick_B's Avatar
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    Re: auto top up - water source

    Keep in mind that if you use your softener for top off, you might want more softener capacity. If you are maxed out on people in the house, and have very hard water, you may need it, or you may need to regen manually pretty often. Also, if this is the case, you will be ordering or hauling a lot more salt. Your pool size, pool use, and location will also be big factors. Not trying to discourage you from doing it at all, just a friendly reminder as these issues are commonly overlooked. Do post the numbers as Dave requested and we can tell you more.
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    Re: auto top up - water source

    Good post. In your discussion at MB, I am hoping we can discuss the realistic capability or residential softeners. I am not sure even our experts me included) have a good grasp of that.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: auto top up - water source

    Will grab a test kit from here and post numbers. Now that you've confirmed that softened water would be better, I do need to examine the impact to the residential loads needed during the summer.
    Is there a calculation to determine avg water evaporation by surface area by temp?
    Thanks all!

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    Re: auto top up - water source

    I don't know the formula for calculating evaporation off hand, but do know wind speed and humidity are a couple of other key factors
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    Re: auto top up - water source

    Quote Originally Posted by kooma
    Will grab a test kit from here and post numbers. Now that you've confirmed that softened water would be better, I do need to examine the impact to the residential loads needed during the summer.
    Is there a calculation to determine avg water evaporation by surface area by temp?
    Thanks all!
    The work is already done. Just Google "pan evaporation data" and you can find it for your area.


    Quote Originally Posted by duraleigh
    Good post. In your discussion at MB, I am hoping we can discuss the realistic capability or residential softeners. I am not sure even our experts me included) have a good grasp of that.
    Being repetitive, it's one of those "it all depends" situations, but often not too well.
    TFP Moderator
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    ABC's Of Pool Chemistry, Test Kits, SLAM Your Pool
    28K Gal IG FreeForm, CLI Quartz, Pentair 36"SF & VS Pump, Dolphin M5, Rheem

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