Which Reverse Osmosis?

Discussion in 'Water Fed Pole Cleaning' started by TobySampson, Nov 18, 2012.

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  1. TobySampson

    TobySampson Well-Known Member
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    Hi all, fairly new to this site but its helped already!

    Question I'm asking is, what is the best reverse osmosis to buy? I've looked at loads and loads and can't decide. I almost went for the new merlin 720gpd but then wasn't sure. What systems are you using and find work well.

    Thanks in advance.

    Toby
     
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  2. Kips

    Kips Well-Known Member
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    Will you need 720 gallons per day? it depends on your need.

    protip : you will not need 720 gpd...
     
  3. spruce

    spruce Grand Master
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    Before anyone can answer they need to know what your tds is, how much water you use, how you will process it, if you are on a water meter, what storage and access facilites you have and what future growth plans do you have.

    (Merlins produce good amount of water, but aren't very efficient. They produce at an efficiency of around 90%. Most other r/o's produce water at an efficiency of 98 - 99%. This means your resin costs will be higher polishing the excess off with a Merlin. They also produce a higher ratio of pure to waste - bad news if you are on a water meter. They are cheap to buy, but will prove to be more expensive in the long run IMHO.)
     
  4. TobySampson

    TobySampson Well-Known Member
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    I've got a lot of customers that have started using me because their window cleaner started wfp so I don't want to change all customers over so I won't need loads of water. Maybe 100-150litres a day. I am on a water meter. I live in a flat so purifying and storing the water is a problem but I do have an outside space. I think in time I will need more water but not a massive amount. I don't need the 720gpd but I thought the quicker I produced pure water the less time the tap would be on.

    Hope this helps in your replys, thanks!
     
  5. mark m

    mark m Hero
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    sounds to me that you would be better off using a di or twin di if that is all the water you need and your storing problems
     
  6. TobySampson

    TobySampson Well-Known Member
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    I don't really know what this means. Just purifying straight through resin?
     
  7. mark m

    mark m Hero
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  8. mark m

    mark m Hero
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    single di


     
  9. TobySampson

    TobySampson Well-Known Member
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    Is that not expensive doing it that way? How long does the resin last? Thanks
     
  10. mark m

    mark m Hero
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    What is you ppm reading ? i would saythat this is normally the most important thing to ask but because you use so little water and no storage i think it will be your best choice give me 10 minutes as i got to pop in bath lol as i have another video which will explain it a bit easier for you
     
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