User Tag List

Informational! Informational!:  0
Likes Likes:  0
Page 1 of 2 12 LastLast
Results 1 to 8 of 10

Thread: Sphagnum moss max ppm/tds

  1. #1
    Swagalotus's Avatar
    Join Date
    Feb 2014
    Posts
    324
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)

    Sphagnum moss max ppm/tds

    I have always bought distilled water from the groceries store to water all my plants up until last year when I got a tds meter and found my tap water was around 70 ppm. However I still use distilled water for pots that have live sphagnum in them since I've read that live sphag is very sensitive to dissolved solids in water, so I was wondering if I could get away with using tap water for my live sphag or if it's to risky. A very big carnivorous plant nursury says any water below 160 ppm is good, but I think that's definitely too high for sphag, what do you think? Might just remove a few live strands and water them with tap water to find out.

  2. #2
    BigBella's Avatar
    Join Date
    Jun 2008
    Location
    SF, CA
    Posts
    2,972
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    I've used tap water wth TDS around 70 ppm in the past; though, have let it stand, twelve hours or more, to allow chlorine from the city water to off-gas. Chloramine, however, is becoming more common and takes far longer to dissipate . . .
    Last edited by BigBella; 09-20-2015 at 01:00 PM. Reason: Predictive text bad at prediction . .
    “Sì perché l'autorità dell'opinione di mille nelle scienze non val per una scintilla di ragione di un solo . . ."

    -- Galileo "Biff" Galilei

  3. #3
    Flip_Side_the_Pint's Avatar
    Join Date
    Dec 2003
    Location
    Lartnec Yellav, Ca
    Posts
    1,433
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I thought chloramine can't really be removed from water by evap? Theres even lots of debate on wether it can be effectively removed with some ro/di units that are made for it.


    maybe someone else can elaborate more on this...

  4. #4
    BigBella's Avatar
    Join Date
    Jun 2008
    Location
    SF, CA
    Posts
    2,972
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Flip_Side_the_Pint View Post
    I thought chloramine can't really be removed from water by evap? Theres even lots of debate on wether it can be effectively removed with some ro/di units that are made for it.


    maybe someone else can elaborate more on this...
    "Chloramine is not a persistent disinfectant and decomposes easily from a chemistry point of view (Valentine et al, 1998) but for water supply purposes chloramine is stable and it takes days to dissipate in the absence of substances exerting chloramine demand (Wilczak et al., 2003b). Therefore, it is not practical to remove chloramine by letting an open container of water stand because it may take days for chloramine to dissipate . . ."
    “Sì perché l'autorità dell'opinione di mille nelle scienze non val per una scintilla di ragione di un solo . . ."

    -- Galileo "Biff" Galilei

  5. #5
    Swagalotus's Avatar
    Join Date
    Feb 2014
    Posts
    324
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by BigBella View Post
    I've used tap water wth TDS around 70 ppm in the past; though, have let it stand, twelve hours or more, to allow chlorine from the city water to off-gas. Chloramine, however, is becoming more common and takes far longer to dissipate . . .
    So is that a yes? If a leave water out for a week it should be good? Interestingly enough bigbella yesterday I read your whole thread on coffee for sphagnum and nepenthes, so I deicded to give it a go. I tested the TDS of the coffee and it was at 750, even though the coffee was made with distilled water! I proceded anyways and today after flushing the pots the sphagnum looks fine. Now only time will tell if the coffee actually worked 😈😈😈

  6. #6
    BigBella's Avatar
    Join Date
    Jun 2008
    Location
    SF, CA
    Posts
    2,972
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Swagalotus View Post
    So is that a yes? If a leave water out for a week it should be good? Interestingly enough bigbella yesterday I read your whole thread on coffee for sphagnum and nepenthes, so I deicded to give it a go. I tested the TDS of the coffee and it was at 750, even though the coffee was made with distilled water! I proceded anyways and today after flushing the pots the sphagnum looks fine. Now only time will tell if the coffee actually worked ������
    Yeah, it just takes a while, as mentioned above; and chloramine even passes through RO units intact, so far as I have been told. It simply wasn't practical or even safe for everyday drinking water, to stand out, for obvious reasons . . .
    “Sì perché l'autorità dell'opinione di mille nelle scienze non val per una scintilla di ragione di un solo . . ."

    -- Galileo "Biff" Galilei

  7. #7

    Join Date
    Nov 2014
    Location
    Sydney, Australia
    Posts
    153
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Swagalotus View Post
    I tested the TDS of the coffee and it was at 750, even though the coffee was made with distilled water!
    Just a small note here, given that you're dissolving a solid (coffee) into the distilled water, I'd be more concerned if the TDS (total dissolved solids) remained low.

  8. #8
    Hello, I must be going... Not a Number's Avatar
    Join Date
    Nov 2006
    Location
    Los Angeles, CA
    Posts
    7,506
    Mentioned
    5 Post(s)
    Tagged
    0 Thread(s)
    What about fluorides in tap water?
    Grand Hotel... always the same. People come, people go. Nothing ever happens.

Page 1 of 2 12 LastLast

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •