Do 4040 systems bring tds a lot compared to...

Discussion in 'Water Fed Pole Cleaning' started by Jake, Mar 26, 2015.

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  1. Jake

    Jake Grand Master
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    .... A standard 450gpd system? (I ment 'down a lot' in the title)

    Reason I ask is I have been buying my pure water since I went wfp and want to start producing my own,

    My water is very hard (480ppm!)

    What do you guys recommend? I was thinking of getting the 450gpd system from pure freedom? Or will this not be good enough?
     
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  2. Green Pro Clean Ltd

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    You got mud coming out the taps?

    Look at this by Polz. If you have a garden or somewhere you can get roof coverage this is the way forward, I am building on from corrugated plastic in my yard next month

     
  3. Jake

    Jake Grand Master
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    Yeah saw that but unfortunately don't have any way to harvest water
     
  4. spruce

    spruce Grand Master
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    #4 spruce, Mar 26, 2015
    Last edited: Mar 26, 2015

    Flip, that's not far off Hartlepoole's 550 ppm.

    A 450 GPD provided enough water for 2 of us (both vans filled for Monday over the weekend and a full IBC tank on Monday evening just got us through the week), but we processed water (still do) into an IBC tank and transferred to the van when needed. The tank has a float switch which switches the water flow off to the r/o when the tank is full using a solenoid valve.

    At 480ppm your membranes won't last that long and you will need to be fastidious with regard to flushing. You may even need to add a booster pump to ensure your membranes are working as efficiently as possible. I would also seriously consider a water softener to exchange those calcium and magnesium ions with sodium ions which are kinder to membranes.

    I would rather recommend a 4021 or a 4040. You will produce water much faster and will always have enough water. Yes they are more expensive than a 450GPD but you can't grow much if you don't have enough water. Those 450 GPD are very slow at best. It took us 28 hours to completely fill and IBC tank, 34 hours in the winter.
     
  5. Jake

    Jake Grand Master
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    Ok sure,

    Yeah it's majorly high, I'm thinking a booster pump is a must, how do you flush the system?
     
  6. peter rogers

    peter rogers Grand Master
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    get a 4040 a sediment filter a carbo filter both 20 inch and a big water softner uel be at 015 - 025 then di vessel will 000 it
     
  7. spruce

    spruce Grand Master
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    The waste is throttled back with a restrictor or tap to force water through the membranes under pressure. Flushing is achieved by opening the waste valve so water washes over the surface of the membrane flushing some of the deposits away.
     
  8. Chris Dall

    Chris Dall Active Member
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    We bought a kinetico mini softner about 8 years ago, cost around a grand but its had 8000L pure made a week from it all for a bag of salt every two weeks or so.

    A solid investment
     
  9. Jake

    Jake Grand Master
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    So what's the advantages of a softener? Is it just good for really hard water?
     
  10. spruce

    spruce Grand Master
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    #10 spruce, Mar 27, 2015
    Last edited: Mar 27, 2015
    It doesn't actually soften the water. The water coming out of the softner will still be the same (to a few points) of the water going in.

    As the water goes though the softner it strips the magnesium and calcium deposits from the water and replaces them with sodium ions. Its the calcium that blocks up membranes and it the same stuff that firs the inside of your pipes and causes limescale deposits/staining everywhere water accumulates and left to dry ie toilet bowl, basin, sink, shower, bath, etc.

    Sodium ions are much kinder to membranes so they will last longer and be more efficient. They still have to remove the high tds but they won't get clogged up as much.

    For more info

    http://www.popularmechanics.com/home/interior-projects/how-to/a150/1275126/
     
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