300 gpd ro help

Discussion in 'Water Fed Pole Cleaning' started by abs, May 10, 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. abs

    abs Guru
    Member

    Joined:
    Jun 4, 2014
    Messages:
    1,379
    Likes Received:
    441
    Hi , I've just bought this second hand 300 gpd ro by streamline has anyone got any clue on these how it's back washed or even set ? It's working and producing 5 ppm water but the waste is huge ,they is a Allen key to turn to slow down the waste but if I do that what damage will that do if any to the membrane? I know it's not a lot to go sorry :(
     
    Advertisement
  2. Smurf

    Smurf Banned
    Member

    Joined:
    Mar 18, 2012
    Messages:
    20,811
    Likes Received:
    3,812
    Does it look like this one?
    If so this gives you instructions how it works
     
  3. abs

    abs Guru
    Member

    Joined:
    Jun 4, 2014
    Messages:
    1,379
    Likes Received:
    441
    Thanks for that Smurf the unit I've got has just the 1 membrane it was originally on a little frame and it's also got a water pressure gauge on the front of it ,I'll try and out some pictures up at some
     
  4. abs

    abs Guru
    Member

    Joined:
    Jun 4, 2014
    Messages:
    1,379
    Likes Received:
    441
    This is what I have ,I haven't a clue how to back wash it and they Isn't and taps or anything ??
     
  5. gto

    gto Active Member
    Member

    Joined:
    May 26, 2012
    Messages:
    101
    Likes Received:
    4
    have you measure the output, the waste may seem very high to you but it might be right.

    get a jug and time 1L for both the pure and waste out put.
    it should be around 2-1, or the worst i had was 4-1, thats waste to pure production
     
  6. abs

    abs Guru
    Member

    Joined:
    Jun 4, 2014
    Messages:
    1,379
    Likes Received:
    441
    Thanks m8
    I have a little device on the waste hose that I can tighten a little Allen key up on,this slows down the waste but should this speed up the pure too and will slowing the waste damage the membrane
     
  7. gto

    gto Active Member
    Member

    Joined:
    May 26, 2012
    Messages:
    101
    Likes Received:
    4
    the pure should speed up a bit.
    with a 300gpd i think the best you will get is around 30L per hour
     
  8. abs

    abs Guru
    Member

    Joined:
    Jun 4, 2014
    Messages:
    1,379
    Likes Received:
    441
    Thanks I'd be well happy if I can achieve that,just need to figure out back washing as they isn't any taps or anything like that on it ?
     
  9. Smurf

    Smurf Banned
    Member

    Joined:
    Mar 18, 2012
    Messages:
    20,811
    Likes Received:
    3,812
    Best you contact streamline directly first instead of messing with it.

     
Advertisement