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Thread: Re Cycle RO

  1. #41
    Quote Originally Posted by davethefish1 View Post
    I messaged them d asking about port sizes,
    And they still got it wrong told me they were 1/4" bsp inlet and outlet. But they are 1/4" bsp inlet and smaller 1/8"bsp outlet on Concentrate and Permeate.

    What output are you getting from your set up at what pressure?
    My 4 x 150gpd are doing 1.2lpm at 90 psi.
    With 0.32lpm to waste
    Haha I messaged them today and they told me exactly the same mate.... useless Re Cycle RO

    Currently mines not doing as good as that ratio wise, I'm at around 1.85lpm at 105psi to 1.2lpm waste...

    i have only had it fully up and running to schedule since Sunday running 6x per day for half hour... i started off with a tds of 580 due to having salt in my pond! Obviously at first my ratios were alot worse, im now down to 420 TDS! It is soon sucking the salt out!

    I have been keeping the waste water around 900 tds and below as to hopefully not knacker my membranes up and I have increased the pressure daily as the waste TDS falls.

    The pressure is probly as high as i want it now so if in the next few weeks my ratios aren't were I expect them to be ill be changing the housings to see if it's the restriction causing it not to be....

    How did your product to waste ratios start out mate?


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    Last edited by Potts021090; 17-02-2023 at 07:05 PM.

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  3. #42
    This thread shows a level of water quality management which makes me feel guilty whenever I open my filter shed door!
    I use a basic 40 carbon filter (20 per year refill cartridge) and that's it. I use about 35 cubic metres of mains water per year in top up (driven mostly by drum flushing).
    My NO3 levels stay at comfortable levels probably due to the anoxic functioning as it should and I don't get Cl levels I can measure in the pond.
    I don't normally measure TDS per se - perhaps ignorance is bliss.
    I did lose my biggest fish over Christmas (29" Kujaku), but he was never right after going for a 30ft+ walk down the concrete garden path and then repeatedly bashing his own head on a step for some reason.
    Very impressive set ups gents. Hat off to you both!
    My DIY ponds from 1988 until present day.
    All can be found here:
    https://www.ukzero.com/pond.htm

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  5. #43
    Senior Member Rank = Grand Champion davethefish1's Avatar
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    Quote Originally Posted by Potts021090 View Post
    Haha I messaged them today and they told me exactly the same mate.... useless Re Cycle RO

    Currently mines not doing as good as that ratio wise, I'm at around 1.85lpm at 105psi to 1.2lpm waste...

    i have only had it fully up and running to schedule since Sunday running 6x per day for half hour... i started off with a tds of 580 due to having salt in my pond! Obviously at first my ratios were alot worse, im now down to 420 TDS! It is soon sucking the salt out!

    I have been keeping the waste water around 900 tds and below as to hopefully not knacker my membranes up and I have increased the pressure daily as the waste TDS falls.

    The pressure is probly as high as i want it now so if in the next few weeks my ratios aren't were I expect them to be ill be changing the housings to see if it's the restriction causing it not to be....

    How did your product to waste ratios start out mate?


    Sent from my SM-S908B using Tapatalk
    The ratio's are less Important when starting or restarting after treatments.
    You can get any ratio you want but if you push the membranes too hard they will start to block and lose output.
    I wouldn't go anymore than 4:1 when at a low TDS
    But 1:1 even is OK if you are starting with a very high TDS.

    When i restarted after treating the pond i was at 300 TDS I was doing about 1 litre pure to 600ml waste at 90 psi
    But my pump is running flat out as it's only standard RO pump.
    But now my TDS is under 150 I'm running 4:1.

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  7. #44
    Senior Member Rank = Grand Champion davethefish1's Avatar
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    Quote Originally Posted by Ukzero View Post
    This thread shows a level of water quality management which makes me feel guilty whenever I open my filter shed door!
    I use a basic 40 carbon filter (20 per year refill cartridge) and that's it. I use about 35 cubic metres of mains water per year in top up (driven mostly by drum flushing).
    My NO3 levels stay at comfortable levels probably due to the anoxic functioning as it should and I don't get Cl levels I can measure in the pond.
    I don't normally measure TDS per se - perhaps ignorance is bliss.
    I did lose my biggest fish over Christmas (29" Kujaku), but he was never right after going for a 30ft+ walk down the concrete garden path and then repeatedly bashing his own head on a step for some reason.
    Very impressive set ups gents. Hat off to you both!
    It's all horses for courses mate
    At least a hundred ways to run a koi pond....

    Obviously works well for you, I envy people who have decent quality tap water lol
    Last edited by davethefish1; 17-02-2023 at 08:47 PM.

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  9. #45
    Quote Originally Posted by davethefish1 View Post
    The ratio's are less Important when starting or restarting after treatments.
    You can get any ratio you want but if you push the membranes too hard they will start to block and lose output.
    I wouldn't go anymore than 4:1 when at a low TDS
    But 1:1 even is OK if you are starting with a very high TDS.

    When i restarted after treating the pond i was at 300 TDS I was doing about 1 litre pure to 600ml waste at 90 psi
    But my pump is running flat out as it's only standard RO pump.
    But now my TDS is under 150 I'm running 4:1.
    You can't grumble at that mate ehh!

    I'll just sit on my hands now and let it do its thing, see what happens....

    Ill keep you posted mate.

    Thanks for the info Dave and i will be keeping an eye out for your next update video Re Cycle ROI hope it all goes well bud.



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  11. #46
    @davethefish1 your quite clued up with what's coming out of your tap.... have you ever had a drastic PH change??

    So my source water has always been very hard.... ph of around 8.4, KH Of 10-11....Hence why I've gone down the RO route...

    Last week I bought a hanna PH pen and when tested my source water it was 6.8! Iv monitored this everyday now for a week and it has stayed the same.... backed up with 3 different testers...

    PH6.8 KH6 TDS360

    Now I'll be honest it's not often I check the source water it's only because I got the new pen! I'm sure it hasn't been like this long as I did over a 50% water change a month or so back when I changed my filter and my pond ph remained above 8.

    Can't get my head around it at all Re Cycle RO


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  12. #47
    Senior Member Rank = Grand Champion davethefish1's Avatar
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    the pH from your tap needs to be fully aerated in order for it to read correctly,
    it reads low straight from the tap but increases once aerated.

    there is science behind it, but i can't recall it at the moment, though probably gassing off CO2
    mankey sankey knows
    Last edited by davethefish1; 15-03-2023 at 08:34 PM.

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  14. #48
    Quote Originally Posted by davethefish1 View Post
    the pH from your tap needs to be fully aerated in order for it to read correctly,
    it reads low straight from the tap but increases once aerated.

    there is science behind it, but i can't recall it at the moment, though probably gassing off CO2
    mankey sankey knows
    That makes sense Dave, I knew you would be the man to ask! Re Cycle RO

    Thought it was strange with the KH still being around 7-8, I'll leave a jug out for a day, let it do its thing, then measure it again.

    Hows your new RO setup coming on mate? Did your pump arrive in the end?




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  16. #49
    Senior Member Rank = Grand Champion davethefish1's Avatar
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    Quote Originally Posted by Potts021090 View Post
    That makes sense Dave, I knew you would be the man to ask! Re Cycle RO

    Thought it was strange with the KH still being around 7-8, I'll leave a jug out for a day, let it do its thing, then measure it again.

    Hows your new RO setup coming on mate? Did your pump arrive in the end?




    Sent from my SM-S908B using Tapatalk
    Turned up last week finally.
    Thought I wasn't going to get it. I'd waited so long.

    Been too busy doing other stuff to get it built ATM.
    Waiting for some warmer weather too lol

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  18. #50
    Quote Originally Posted by davethefish1 View Post
    Turned up last week finally.
    Thought I wasn't going to get it. I'd waited so long.

    Been too busy doing other stuff to get it built ATM.
    Waiting for some warmer weather too lol
    Brilliant mate glad to hear it turned up! Look forward to your update video Re Cycle RO

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