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Thread: RO / Tap Water question

  1. #1
    Join Date
    Feb 2012
    Location
    Raymond, NH
    Posts
    344

    Default RO / Tap Water question

    I have a MES Dolly 300 for maple. We have a sudden demand for RO water where I work to use to make hand sanitizer. The permeate flow level of my Dolly is pretty near perfect for our needs. But I don't have enough knowledge about membrane types, etc to know if this is a good idea or not.

    Biggest question: It is my understanding that I don't want chlorine to touch my membranes. The water we would be treating is municipal tap water so it has chroline in it. I am thinking that if I put a carbon filter in place of the filters that I normally use, then that would protect my membranes. Can anyone confirm this?

    If anyone thinks this is a terrible idea, please let me know. Appreciate the great knowledge on here!
    More taps than the year before. Bigger shack than the year before. Leader Patriot 2x6 w/hood. 3-post Dolly, but still too much sap and not enough wood or time.
    www.wickedsappy.com

  2. #2
    Join Date
    Mar 2005
    Location
    Cornish,NH
    Posts
    711

    Default

    Wonder if you called MES if they could better answer that Question 603-428-3336. I have also been told that about the chlorine.
    3x10 Dallalre, oil fired, Stainless steel.
    Steam hoods front and rear with preheater.
    1500 taps on vac, right to sugar house.
    900 on Gravity
    New Busch 3 Phase Vacuum. (2010)
    Lapierre 600 Turbo with 2 - 8" posts
    36 years of MAPLE ENJOYMENT!!
    https://www.facebook.com/pages/Hills...93710737313171

  3. #3
    Join Date
    Feb 2017
    Location
    NY
    Posts
    54

    Default

    You would need to find out if it is chlorine or chloramine (less volatile and harder to remove).

    Also, a single pass through a carbon filter wouldn’t be enough to remove enough chlorine for long term use. You would need to run a couple in series and slow the flow rate down so you get a longer contact time. Some activated carbon filters are better than others, research the different types and make sure you get something suitable. It can certainly be done.


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  4. #4
    Join Date
    Jan 2008
    Location
    Hopkinton, MA
    Posts
    1,551

    Default

    You are right about the carbon filter. I use filtered city water for my beginning of the the year rinse/wash. I use something like this:
    https://www.isopurewater.com/Water-S...hoCRUkQAvD_BwE

    You can get something a lot cheaper if you shop around.

    Here's the thread with the background on it. Be sure to use food grade/safe hose for potable water. Usually RV hose is good for that. I don't remember the gph, but it's slow or at least way slower than your RO. I think it's 1 gpm. You'll want to fill a tank and then RO it into another tank. I've no idea what pressure to run water through. It's not like you are squeezing sugar out.

    http://mapletrader.com/community/sho...light=flush+RO
    Woodville Maples
    www.woodvillemaples.com
    www.facebook.com/woodvillemaples
    Something north of 250 taps
    Mix of natural and mechanical vac, S3 Controller from Mountain Maple
    2x6 W.F. Mason with Phaneuf pans
    Deer Run 125 RO
    6 hives of bees
    Keeping the day job until I can start living the dream.

  5. #5
    Join Date
    Jan 2017
    Location
    Williston, VT
    Posts
    126

    Default

    Would it make more sense to use untreated water to avoid chlorine?
    Ken & Sherry
    Williston, VT

    2017 - 13 gallons on 65 taps (12 buckets, rest 3/16), 2x4 flat bottom, modified cargo box sugarhouse
    2018 - 90 gallons on 418 taps (gravity lines), Leader 30"x10' Vortex Arch & Max Raised Flue with Rev Syrup Pan, New Sugarhouse
    2019 - Burned through alot more money: heated kitchen, 2x2,000 and 375 gal ss sap tanks, CDL1200 RO, Bauch Vac Pump, More taps, etc., etc., etc.
    https://www.facebook.com/pumpkinhillmaple/

  6. #6
    Join Date
    Feb 2017
    Location
    NY
    Posts
    54

    Default

    If untreated water is an option, hands down it would be the better one.


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  7. #7
    Join Date
    Feb 2012
    Location
    Raymond, NH
    Posts
    344

    Default

    Untreated water is not an option. All we have available is town water. I just looked and it has chloramines. ****.

    We have a Deionized water system here but it is expensive and it is overkill for hand sanitizer. So I thought RO would be good. Maybe I'll just call the guy that does our DI system and see if we can lease an RO unit for a few months. That's probably as long as we'll need it. Might be better to do that then to potentially screw up my maple RO.

    Thanks for you input everyone!!
    More taps than the year before. Bigger shack than the year before. Leader Patriot 2x6 w/hood. 3-post Dolly, but still too much sap and not enough wood or time.
    www.wickedsappy.com

  8. #8
    Join Date
    Dec 2002
    Location
    Loudon NH
    Posts
    5,639

    Default

    Maybe research membrane types and find some that can handle the chloramine. If there is such a thing and the price is reasonable it's another option.
    Russ

    "Red Roof Maples" Where the term "boiling soda" was first introduced to the maple producing world!

    Algier 2x6 evaporator, W F Mason arch
    Lapierre 250 Turbo RO machine
    SP-22 vacuum pump
    1930 Ford Model AA Doodlebug tractor
    1971 IH 454 52hp diesel tractor
    A couple of Honda 4 wheelers
    About a dozen chainsaws and no chickens

  9. #9
    Join Date
    Apr 2008
    Location
    NW Wisconsin
    Posts
    738

    Default

    I agree with Red Roof. Get a specific membrane for the sanitizer use, save your maple membrane for what it is intended for. Cost of doing business.
    Jeff Emerson
    www.emersonsmaplehill.com
    3x12 Leader with over air, custom piggyback, 600gph CDL RO
    2500 on 25" vacuum, +900 buckets (buying sap)
    350 big bear and 1950's Ford 600 wood hauler, Husqvarna! (261, 372xpBigBore, 562xp, rebuilding a 2100cd)

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