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Thread: calcium hardness/ metal control new to me, do I need them

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    Default Re: cacium hardness/ metal control new to me, do I need them

    My DH didn't want to wait,he wants to go swimming tomorrow and the guy said not to go in the water until the ph is higher. So he added 7lbs of alkalinity increaser only. I'll have to see if I can find a pool store to run a test tomorrow or monday to check my numbers again. We didn't add anything else.

    just a note, the water is crystal clear and there were no stains on the walls...so we didn't have any problems - we just had the water tested to check the TA and ph.
    Last edited by karenib; 05-24-2008 at 11:51 PM.

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    Default Re: cacium hardness/ metal control new to me, do I need them

    That's fine. You should have the alkalinity between 80 - 100. Just don't add the calcium. You do have to add more chlorine - get it up in to around 8ppms, this way when people start to swim you won't go below 5. After a couple of hours of adding the alkalinity up check your numbers.
    Northeast PA
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    Default Re: cacium hardness/ metal control new to me, do I need them

    Thanks Marie. Do you think I should hold on to the bottle of metal control in case I do get staining. The rest of the chemicals are going back to the store

    Karen

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    Default Re: cacium hardness/ metal control new to me, do I need them

    Yes, I would just hold on to the metal control until you see some stains forming. If you see a stain starting, then take the ph down to 7. - 7.2, and add the metal control. It should lift the stain off.
    Northeast PA
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    Default Re: cacium hardness/ metal control new to me, do I need them

    Quote Originally Posted by karenib View Post
    My DH didn't want to wait,he wants to go swimming tomorrow and the guy said not to go in the water until the ph is higher. So he added 7lbs of alkalinity increaser only.
    Karen - You said you were trying to raise ph so you added alkalinity increaser. Ph and alk are not the same thing. You raise ph by adding Borax. You raise alk by adding baking soda. If your alk was already 90, then I hope adding the 7 lbs. of alk increaser doesn't raise your alk too much.

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