Odd Tds Readings

Discussion in 'Water Fed Pole Cleaning' started by Tuffers, May 30, 2013.

Advertisement
  1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.
  2. Welcome to the UK Window Cleaning Forums.
    Starting or own a window cleaning business? We're a network of window cleaners sharing advice, tips & experience. Rounds for sale & more. Join us today!

  1. Tuffers

    Tuffers Hero
    Member

    Joined:
    Sep 10, 2012
    Messages:
    9,386
    Likes Received:
    2,742
    OK, I did a little experiment earlier tonight. What I did was pour some water that had boiled and cooled from the kettle into a cup and I poured some water straight from the tap into a cup. I then dipped my tds meter in each cup. I did the test several times, and the same results kept coming up.

    The readings were;

    Boiled 077

    Tap 062

    Why?
     
    Advertisement
  2. rcproperty

    rcproperty Hero
    Member

    Joined:
    Jun 16, 2012
    Messages:
    8,037
    Likes Received:
    244
    When the water boils same of the water evaporates but the solids don't, so leaving the same amount of solids in less water
     
  3. rcproperty

    rcproperty Hero
    Member

    Joined:
    Jun 16, 2012
    Messages:
    8,037
    Likes Received:
    244
    Also could be the amount of solids already in the kettle,limescale around the element coming loose.
     
  4. bluemonkey

    bluemonkey Guru
    Member

    Joined:
    Apr 25, 2011
    Messages:
    1,134
    Likes Received:
    28
    the electrodes in the water, is what determins what the tds is, as an electric current is sent from 1 side of the tds machine to other and depending on how much resistance there is determines how high the tds is, hot water H2o all the moleclues are all over the place in hot water so it throws the reading out,

    try the tds machine in pure water and then boil it and get a other reading
     
  5. bluemonkey

    bluemonkey Guru
    Member

    Joined:
    Apr 25, 2011
    Messages:
    1,134
    Likes Received:
    28
    plus unless the water is at the same temp, then readings will be different
     
  6. Tuffers

    Tuffers Hero
    Member

    Joined:
    Sep 10, 2012
    Messages:
    9,386
    Likes Received:
    2,742
    Hmm, my dad used to boil water and let it cool to top up his car battery many moons ago.
     
Advertisement