Ro or just Di

Discussion in 'Water Fed Pole Cleaning' started by J and S, Sep 21, 2016.

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  1. J and S

    J and S Active Member
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    TDS around here fluctuates between about 95 and 110.....I have Ro and Di but getting a lot of waste considering I'm on a meter......how many litres would I be able to make just using Di's between changing resin....currently using a 1000 litres to get about 450 litres....1000 litres on a meter round here is £2.92.
     
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  2. Lewis

    Lewis Well-Known Member
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    Hello mate, I'm Di and have soft water about 80ppm out the tap although will soon be upgrading to a RO set up from grippa tank to hopefully save money on resin, but looking a that price might not be worth it so might stick to DI


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  3. spruce

    spruce Grand Master
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    Here's a resin calculator

    Resin Calculator

    You will be better off with resin use if you use twin di
     
  4. Lewis

    Lewis Well-Known Member
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    3 weeks work from one 25ltr bag so a ro would be cheaper in the long run?


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  5. spruce

    spruce Grand Master
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    A 25kg bag should last about 14 days using 450l of pure per day water 110ppm J and S . At £80 a bag that will cost you £5.72 per day. Cheaper to run the r/o IMHO.

    If you have a 7 liter di vessel you will be changing the resin every 3/4 days. That would drive me crazy to begin with. Any di bigger than that is very difficult to change resin as its heavy, cumbersome and awkward.
     
  6. Lewis

    Lewis Well-Known Member
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    Thanks spruce, yeah I'm fed up of changing resin heavy and cumbersome for sure.


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  7. J and S

    J and S Active Member
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    25 litre bag will do 6000 litres @ £72 per bag.
    With the ro approx 13000 litres to make 6000 litres @ 2.92 per 1000 = £38 so will stick with ro.
     
  8. J and S

    J and S Active Member
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    25 litre bag will do 6000 litres @ £72 per bag
    Forgot to add plus the price of 6000 litres @ £18.
     
  9. spruce

    spruce Grand Master
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    I forgot that as well :(
     
  10. Jimbob Jones

    Jimbob Jones Newcomer
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    Ah man!!! Water is coming out the tap here at about 300ppm! RO is a must for us :( Just resin wouldn't stand a chance!
     
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