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Thread: Cheaper Water for CP's

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    Brolloks's Avatar
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    Cheaper Water for CP's

    Hi,

    I just want to get a few opinions on the following:

    I have been using Distilled water for all my CP's which I buy from the local Pharmacy. This unfortunately is not cost effective, so I have been looking around and I found a company that uses Reverse Osmosis to purify their water and sell it at a really attractive price.

    From what I have gathered, CP's should be given water that is 50ppm or lower?

    Now this company provided me with some data on their water, which is:
    "From a public distribution system using reverse osmosis"
    Calcium = 41.0
    Magnesium = 5.1
    Nitrate = 0.4
    Sodium = <0.1
    Sulphate = <5
    pH = 6.8
    Tds = <10.0

    If these measurements are true, do you guys think this water can be used?

    Thank you.
    Regards

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    PsychoSarah's Avatar
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    Nepenthes should be ok. Although that is an interesting amount of calcium.
    Last edited by PsychoSarah; 05-13-2014 at 02:13 PM.
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    pebes's Avatar
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    i dont see how you can have tds <10 ppm and calcium and magnesium at 46ppm. are the units all the same?

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    Brolloks's Avatar
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    Quote Originally Posted by PsychoSarah View Post
    Nepenthes should be ok. Although that is an interesting amount of calcium.
    So I take it the water is a bit "hard" and not really suited for CP use? except maybe Nepenthes?

    I've mostly got Drosera in my collection.

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    Brolloks's Avatar
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    Quote Originally Posted by pebes View Post
    i dont see how you can have tds <10 ppm and calcium and magnesium at 46ppm. are the units all the same?
    The way I posted it is exactly what their data sheets specifies.
    What I would like to do is get a TDS meter and test the water, but will only be able to get this at a later stage.

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    Many places have vending machines that sell RO filtered water by the gallon. WalMart is one place that often has them. Around Southern California there are usually vending machines outside the supermarkets. $0.25-0.35 a gallon depending on the location. The machines I use usually run about <=3ppm
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    pebes's Avatar
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    keep in mind that Ca and Mg would have to have an anionic component in the water as well, most likely chloride since sulfate is <5 or maybe carbonate. that would make the TDS closer to 100ppm at minimum. worth looking into some clarification or finding a different source. you can even invest in a small RO unit to keep at home. i found one on Ebay for around $60 US about three years ago and make between 30- 100 gallons a week. it brings the cost down considerably if you can find something similar there.

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    If it is possible, have you considered getting an RO system yourself? The water is better for humans as well, and it would save you the hassle of purchasing more water whenever you run out. I use RO water on all my plants.

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