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Thread: safe PPM range for CPs?

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    SirKristoff's Avatar
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    safe PPM range for CPs?

    Well, i had my water tested a week ago, and our water hovers aroun 19-24 PPM
    Think it would be safe to use on my plants? heard from a couple people it would. just want some insight on this. Id prefer responses from people who know about it. i know hard water is 100+ PPM...

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    Let's positive thinking! seedjar's Avatar
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    I've been told that <100 is OK for some CPs, <50 is good for most all CPs, and <25 is about the point where you stop seeing any further benefit for greater purity. But that was back when I was researching RO systems a few years back. Now that I actually have a filter, I've kind of forgotten about it. ;P
    ~Joe
    o//~ Livin' like a bug ain't easy / My old clothes don't seem to fit me /
    I got little tiny bug feet / I don't really know what bugs eat /
    Don't want no one steppin' on me / Now I'm sympathizin' with fleas /
    Livin' like a bug ain't easy / Livin' like a bug ain't easy... o//~

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    50 is ideal and 100 is ok if flushed every so often

    Yours is good to use!

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    sea bear returns! theyellowdart's Avatar
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    19-24 ppm (parts per million) of what? That could measure a number of things in water... ammonia, nitrates, hardness, etc.
    (I assume you mean water hardness...?)
    growlist

    Has anyone really been far even as decided to use even go want to do look more like?

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    Let's positive thinking! seedjar's Avatar
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    Quote Originally Posted by theyellowdart View Post
    19-24 ppm (parts per millon) of what?
    You get the smart prize of the day. That's a very significant detail. I assumed water hardness as well.
    ~Joe
    o//~ Livin' like a bug ain't easy / My old clothes don't seem to fit me /
    I got little tiny bug feet / I don't really know what bugs eat /
    Don't want no one steppin' on me / Now I'm sympathizin' with fleas /
    Livin' like a bug ain't easy / Livin' like a bug ain't easy... o//~

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    sea bear returns! theyellowdart's Avatar
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    Quote Originally Posted by seedjar View Post
    You get the smart prize of the day. That's a very significant detail. I assumed water hardness as well.
    ~Joe
    Lol, no I don't. I just realized I misspelled million. Thanks anyway...
    growlist

    Has anyone really been far even as decided to use even go want to do look more like?

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    bucky78's Avatar
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    My water is 7 ppm of total dissolved solids when it comes out of my RO system. How do you test hardness?
    I don't want EVERY Sarracenia, just everyone that I see!!
    Growlist/Wantlist Updated 2/23/12:http://terraforums.com/forums/showthread.php?t=103039

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    SirKristoff's Avatar
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    TDS meter.

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