Cleaning RO unit

Discussion in 'General Discussions and Advice' started by JD167, 17 May 2010.

  1. JD167

    JD167

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    Over the last couple of weeks I found my RO unit taking longer and longer to fill my 25L drums. It got to a point where it would take all day just to fill half a 25L drum with RO.

    I have one of these Aqua Medic 3 stage units.

    [​IMG]

    With TDS readings sitting at 30(not good) I decided to try and clean out the membrane. Still no improvement. I then took the first stage off and flushed some water through, clean as a whistle. I then removed the second stage(Carbon). I blew from the one end... blocked. Flushed some water in the direction of the flow and not joy. Flushed in the opposite direction and I was amazed by the amount of crap that came out!! I couldn't believe it! And to think we drink this water!

    Anyway, put it all back together and it's working like a brand new unit! Now my TDS is on 8! :thumbup: Moral of the story, check your RO units regularly. And don't drink water, drink :peroni:. :whistling:
     
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  3. robertkukla

    robertkukla

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    :lol::lol::lol:
     
  4. MistaOrange

    MistaOrange

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    :lol::lol::lol::lol:I like that one:razz:
     
  5. MistaOrange

    MistaOrange

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    BTW I have the same unit but mine has been slow from day one & I followed those instructions closely. Just a Q your waste out put does it run faster than the ro out?
     
  6. JD167

    JD167 Thread Starter

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    Yea. It runs a lot faster than the clean RO output. How long have you had yours?
     
  7. mandarin

    mandarin

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    About a month ago i also noticed my RO storage tank was filling with a speed, that's all because of dirty filters.The clever guys say that you should rather fit new membrane and filters every 4-6 months and not try and clean them because the material they use inside could damage and it won't work efficiently.( Same as a air or oil filter.)The TDS reading before was 200 when i tested it at our LFS, hard to believe but I replaced everything after 4 months in use and the reading came down to 3. RO units are go slow, i was told for 1ltr RO, 6ltrs go to waste.
     
  8. JD167

    JD167 Thread Starter

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    You are supposed to change them out every 6 to 12 months yea, but I'm trying to make mine last just a little longer. As long as my water is clean and TDS is at an acceptable level, I'm happy. As soon as it gets too dirty again I'll get a new one.

    As for the 1 to 6 ratio, I use a normal garden hose for the "dirty" water that goes to my garden. Nothing gets wasted.
     
  9. dallasg

    dallasg Moderator MASA Contributor

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    you only have to change filters etc when your RO makes more than 0 tds
     
  10. Manic

    Manic Moderator

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    Agreed. The 6-12 month thing means nothing. Take my RO unit for example, my tank uses around 60L of water a week on auto top up and around 75L a month for water changes. So that equates to around 315L of RO a month. Where as when I was running my nano it was probable only 60L a month. It all depends on how much RO water you make. The more you make, the more you need to replace the filters.
     
  11. MistaOrange

    MistaOrange

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    I've had it for just about a year now & mine takes about an hour to fill 25l. LOL I take it you got yours at sam's?
     
  12. MistaOrange

    MistaOrange

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    Thanx Guys I really need to get a tds meter
     
  13. Pete

    Pete

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    Guys, quick question for you. How often do you flush your R/O unit? Little tip is to flush your unit atleast once a week for about 20min before you make your R/O, by doing this you prolong your membrains life span should last you two - three years if maintained properly, your prefilters and di-resin should be changed at least every four to six months or when TDS starts to climb. Just my 2C
     
  14. IMarine

    IMarine

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    Hi guys what i got is 4stages a 10micron then a 5 micron then a carban block then my membrain and find i waist 30lts to 20lts good water and i change my micron and carban block every 3 months and find my membrain last 2 years with a tds in the last 18months of 5 what is not bad, but also rinse my canisters of the membrain and micron filters every 3 months and this works very well
     
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