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Thread: Results of Water Testing

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    italo.america's Avatar
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    Results of Water Testing

    Hi Everyone,

    I just ran a test of my water and these are the results.

    Tap Water: 153 PPM
    Chlorine Free Water from RO unit: 134 PPM
    Reverse Osmosis Water from RO unit: 20 PPM
    Rain Water: 11 PPM
    My questions for the forum is? With these results is it ok to use Chlorine Free water for my CPs or should I just stick to rain water and Reverse Osmosis water?

    Thank you in advance for any useful information!


    Giovanni

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    Capensis's Avatar
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    Stick to RO and rain water
    http://www.terraforums.com/forums/image.php?type=sigpic&userid=6789&dateline=1352508752

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    Av8tor1's Avatar
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    italo, youre rejection ratio is about 85%...(based on 134 at membrane inlet and 20 at membrane outlet) that is unusually low

    just curious, how old is your membrane and what is the pressure at the membrane inlet?

    Av

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    Does home depot or lowes have water testers?

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    italo.america's Avatar
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    AV,
    Thank you for your reply!
    The membrane is about 10 months old and I'm not sure about the pressure at the membrane inlet. My unit is a Ultralife "Crystal Clear" Aquarium RO System. URP-12.
    Does 20 PPM indicate that it is time for a filter change?
    Giovanni

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    Av8tor1's Avatar
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    no, not really... its just indicating that something isnt just quite right... maybe membrane inlet pressure is a little low... it would be nice to know the pressure and brine ratio, but its no biggie... 20ppm is just fine mate, nothing to worry about

    membrane should last 2-5 yrs
    Av

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    D_muscipula's Avatar
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    below 50 ppm is good for use with general cp's.
    so the chlorine free water with 134 ppm no stick to the Reverse Osmosis or collect rainwater.
    view my growlist
    http://grwlist.notlong.com

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    italo.america's Avatar
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    AV,

    Could 20 PPM indicate that it is time for a filter change and at what PPM level should I be concerned? Thank you again!

    Giovanni

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