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  1. #1
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    Dec 2008
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    54

    Increase your RO/DI efficency

    My RO/DI unit wastes water like crazy and supplies water very slowly.
    I have been told the water coming in needs to be warm, something like 75-80 degrees F.
    I have a fairly large system with lots of MH lighting and excess heat.
    I decided to use this excess heat to warm my RO/DI supply water.
    All I did was buy 60 feet of 3/8" nylon tubing, tie it into my supply tubing and submerge it in my sump.
    This elevated my supply water temp from 64 deg F to 78 deg F.
    This in turn helps to cool my tanks and make about 30% more water with a little less waste.
    Since the water flow is so slow I achieved 100% heat exchange.
    Seldom, do you find a win win situation.
    I thought this worth sharing.
    1000 Islands Aquaria
    613-246-TANK(8265)

  2. #2
    liv
    liv is offline
    Former Moderator liv's Avatar
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    Dec 2003
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    5,646
    you are absolutely correct !
    I've been searching the net for titanium tubing to do the same thing.
    but its way too pricy.
    The regular nylon tubing would work too... its just not as conductive so you need more.. but its much less expensive.

    I'll have to set this up on my next system.

    moving.. so temporarily out of SW :b8:
    planning next tank, possibly 60x30x20 on 2x plasma.
    updated: 2011/05/30

  3. #3
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    Dec 2008
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    54
    This mod is so simple. It only took about 20 minutes. One compression fitting and it was done. I fed the new tubing into the existing JG fitting and the compression fitting at the other end. Just remember to get the compression fitting with the insert or the tubing will collapse and not hold any pressure. The tubing and fitting cost about $25. Tubing from TSC and fitting from Home Depot.
    1000 Islands Aquaria
    613-246-TANK(8265)

  4. #4
    Senior Member
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    Dec 2005
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    139
    is a great idea, no doubt about it

  5. #5
    ijo
    ijo is offline
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    May 2011
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    Great idea!! I'll send a couple requests for titanium tubing to our puchased agents and see what they come up with.

    IJO

  6. #6
    Senior Member
    Join Date
    Jan 2007
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    612
    Simple and ingenious idea. Water usually comes out of an average well pretty damn cold, and most of us are looking for ways to cool the tank at the same time. I'd definitely try it if my rodi was closer to my tank like most of us. It's almost foolish to not try this. Combine this with a booster pump and you'll be using your rodi as efficiently possible.:045:
    120g AGA~145 lbs Haitian LR~DA Reef Keeper 2 Controller~Dual 14k 250 DE MH's~Dual Overflows~Dual 250w Jager Heaters~Dual 96W Actinics~30g Sump/Refugium~Mag 12 Return~140 lbs Reefgrade Caribsea Aragonite~BubbleKing 180 Skimmer~Phosban Reactor~GEO Kalk Reactor~Powerheads:MP40w/Seio 820/modified Powersweep 270 with Hydor rotating deflector~Digital lighting timer for moon/fuge lighting~7 stage RODI filtration~Quarantine: modified 12.5g Marineland Eclipse

  7. #7
    Member
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    Dec 2008
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    54
    I measured the water coming out of my well today. 40 degrees farenheit...brrrr.
    1000 Islands Aquaria
    613-246-TANK(8265)

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