ro/di rigs

Discussion in 'Filters, Pumps, etc..' started by reef4188, Oct 18, 2011.

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  1. reef4188

    reef4188 Plankton

    Joined:
    Oct 18, 2011
    Messages:
    1
    3REEF:)

    I was looking into purchasing a RO/DI for setup at my house, to have my own supply of low/zero ppm water available. My friend showed me some models, and said go for an efficient one if I can. I decided on spectrapure uhe100gpd, it has the amazing 2:1 ratio that I could really benefit from, even if it's a big upfront investment

    After searching i'm still confused about the options available for the water inlet/feed portion of the systems.:confused:

    Is it necessary to hook up to my houses tap water line to run, or is there a setup where I could have a reservoir of water with a pump connecting to system inlet/feed? Or else, can gravity be used, such as the feed water reservoir is located directly above the system, using its' weight to create feed psi?

    My tap water line has enough psi for the system to run at stated 2:1 efficiency, but my water temp is around 45F , which is way off the correct value.

    I'm mixed up about the way it achieves its efficiency.:angry:
    Does temperature change my product/waste ratio?
    Or is it that gpd goes down with lower feed water temp, but I can still achieve the 2:1 ratio? This would be ideal, because I dont need the whole 100gpd
     
    reef4188, Oct 18, 2011
    reef4188, Oct 18, 2011
    #1

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  2. AZDesertRat

    AZDesertRat Giant Squid

    Joined:
    Jul 30, 2009
    Messages:
    3,904
    Location:
    Phoenix AZ
    Spectrapure has a Sponsors Forum here on 3Reef:
    SpectraPure - 3reef Forums

    You might ask the above questions or cut and paste them in that forum as they check it on a regular basis.

    I myself own a UHE-100 system and love it. I have owned it just over two years and the DI life and reduced waste are amazing. I run it at slightly less than 1:1 waste ratio and my tap water TDS is around 535. The RO only TDS is averaging 99.43% removal when I checked last weekend and I just changed only the third DI cartridge in two years! Thats with a 100G reef system with a 30G sump and a 16G nano reef. Amazing product.
     
    AZDesertRat, Oct 18, 2011
    AZDesertRat, Oct 18, 2011
    #2
  3. SpectraPure

    SpectraPure 3reef Sponsor

    Joined:
    Sep 10, 2009
    Messages:
    25
    You need tap water pressures to supply the UHE. Gravity won't do, and you'd need a 300 gallon reservoir with a "delivery pump" (not cheap) to make the 100 gallons per day. Also, you wouldn't want the res to run dry if the UHE was still running.

    Temperature will reduce the production, but an adjustment can be made to maintain the desired ratio.

    Scott
    SpectraPure, Inc.
     
    SpectraPure, Oct 18, 2011
    SpectraPure, Oct 18, 2011
    #3