Anyone using the double DI method

Discussion in 'Water Fed Pole Cleaning' started by CMRwindowcleaning, Sep 22, 2015.

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. CMRwindowcleaning

    CMRwindowcleaning Active Member
    Member

    Joined:
    Feb 11, 2015
    Messages:
    242
    Likes Received:
    66
    Saw a thread not long ago about someone using two DI's to fill up there tank. I'm thinking of ditching the ro and going down this route. Probably use about 250-300 litres a day fairly hard water area. Just wondering if anyone is using this method and how much they are producing and how much resin they are going through??
     
    Advertisement
  2. Njones

    Njones Well-Known Member
    Supplier

    Joined:
    Mar 18, 2012
    Messages:
    390
    Likes Received:
    122
    I've used that method - - it cut my resin usage by about 30%,.. but it'd still have been well expensive to ditch the RO.
     
  3. CMRwindowcleaning

    CMRwindowcleaning Active Member
    Member

    Joined:
    Feb 11, 2015
    Messages:
    242
    Likes Received:
    66
    How much water you producing mate? And what kind of ro you got?
     
  4. Njones

    Njones Well-Known Member
    Supplier

    Joined:
    Mar 18, 2012
    Messages:
    390
    Likes Received:
    122
    I'm not doing windows anymore - but when I was I had a pumped 400gpd system from Vyair and used about 1200 litres in an average week.
    I had two 19 litre DI's after the RO and I'd go through a bag of resin every 12 - 14 months on average. If I was using DI only I'd have been using a bag every month or more as my tap water TDS was around 400.

     
  5. firefly123

    firefly123 Member
    Member

    Joined:
    Jun 11, 2015
    Messages:
    56
    Likes Received:
    16
    hard water area twin di only no
     
  6. tench0771

    tench0771 Grand Master
    Member

    Joined:
    Jun 30, 2013
    Messages:
    4,278
    Likes Received:
    932
    to factors u need to think about 1 is whats ur tds ? ,2 r u on a water meater?
     
  7. peter rogers

    peter rogers Grand Master
    Member

    Joined:
    Feb 24, 2015
    Messages:
    2,943
    Likes Received:
    581
    this all depends on ppm if its above 300 cheaper with ro4040
     
  8. mark m

    mark m Hero
    Member

    Joined:
    Feb 22, 2012
    Messages:
    6,621
    Likes Received:
    527
    Was it my old video

     
  9. CMRwindowcleaning

    CMRwindowcleaning Active Member
    Member

    Joined:
    Feb 11, 2015
    Messages:
    242
    Likes Received:
    66
    Not on a water meter but morally the amount of waste water that I have been producing has been bugging me lately I'm not entirely sure of my ppm out of the tap it's been so long since I last checked! That's the video I've seen mate mark m what's your tds? And how much water you producing and resin are you going through mate?
     
  10. mark m

    mark m Hero
    Member

    Joined:
    Feb 22, 2012
    Messages:
    6,621
    Likes Received:
    527
    this was a few years ago when I did not have the space for a ro unit at the time my tds was 240ppm and I was producing 6000litres fro a approx. cost of £70
     
    • Informative Informative x 1
    • List
Advertisement