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Thread: Results of Water Testing

  1. #9
    Av8tor1's Avatar
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    Giovanni,

    the 20ppm by itself doesnt tell you anything, it is the ratio of ppm in to the membrane to ppm out of the membrane. If all is well this will usually be in the 90%+ range.

    Like D stated, anything under 50 is normally considered just fine

    Av

    note: 100-((20/134)x100)=85% rejection ratio

  2. #10
    italo.america's Avatar
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    AV and D_Musipula,

    Thank you for your great advice!

    JMurphy97,

    This is the link for a basic water tester. It is noting fancy but will get the job done at a good price.
    http://www.amazon.com/Surround-Air-W.../dp/B000HVRIFC

    Giovanni

  3. #11
    Hello, I must be going... Not a Number's Avatar
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    FYI:

    Tap Water (west Los Angeles area): 235 ppm TDS
    Tap water run through Britta filter: 110 ppm TDS
    Water from Glacier vending machines: usually 3 ppm TDS min: 1 ppm max: 5 ppm

  4. #12
    italo.america's Avatar
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    Not a Number,

    Thank you for the FYI.

    I never knew that water from glacier vending machines could have less ppms than rain water and RO water.

    Giovanni

  5. #13
    Av8tor1's Avatar
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    Giovanni,

    It is probably RO water that has been further polished using demineralization by ionization (DI) to remove the last few ppm.

    My home RO/DI set up consistently puts out 0ppm

    I actually think a few ppm is good for micro-nutrient purposes

    Av

  6. #14
    Hello, I must be going... Not a Number's Avatar
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  7. #15
    Capensis Killer upper's Avatar
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    is glacier vending machine the one that's blue with bubbles, and have penguins, and its like 25cent a gallon? the one with clear door that you open up to put the water.


    if it is, i've been walking farther,and spending more money(around 30$ now) that vending machine is less than a block away from my house(right in front of (food 4 less))

  8. #16
    Av8tor1's Avatar
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    Thanks Warren,

    A lot depends on what the inlet TDS is, a typical membrane has a rejection ratio of 95-99%. If inlet TDS is 100 then those numbers would be expected... but very impressive regardless, sure dont see that brand around here

    Av

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