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Thread: First TIme RO Questions

  1. #1
    Join Date
    Feb 2017
    Location
    Minnesota
    Posts
    59

    Default First TIme RO Questions

    Good Morning!

    I like many have jumped into the home made RO process. I needed to find time since I took on coaching baseball again. Here is a picture of my setupIMG_1082.jpg 400gph membrane. A couple of questions I have 1) Do I need to pre rinse before my first time ever use? 2) After I run a batch it typically will be a week or so until my next batch since I boil on weekends. Would a rinse of permeate be enough for it to last the week in a cool environment after each batch? Thanks for any help!

  2. #2
    Join Date
    Jan 2016
    Location
    MA
    Posts
    367

    Default

    In my experience the answer to both of your questions is yes. I believe that the membranes have a preservative in them that should be rinsed out with 10 gallons of clean non-chlorinated water.

    When I am done with my RO I rinse it with permeate and then store it between boils for upwards of a week in a cool spot. I’m not sure if this is necessarily recommended by the manufacturer, but it seems to work in my case, and I have not had problems with bacterial buildup.
    55ish taps on buckets
    D&G Sportsman 18x63
    RB15 RO Bucket
    Stihl 044 and 026

  3. #3
    Join Date
    Feb 2016
    Location
    Western Ny
    Posts
    269

    Default

    I agree with that.
    2019- RO
    2018- 25 taps made 8 gal syrup.
    2017- 25 taps -built a 2x3 flat pan, and a fuel tank arch for it. 335 gal 7.34gal syrup.

    2016- 15 taps, 4.3gal syrup boiling on cinderblock arch 3 roasting pans, 1 redneck trash can with a pot, and a turkey fryer.

    2015- 4 taps 44 gals of sap made 2.25 gal of lite syrup.

  4. #4
    Join Date
    Feb 2016
    Location
    Western Ny
    Posts
    269

    Default

    Which pump are you using.? Looks like you'll have room to expand, that will be nice.
    2019- RO
    2018- 25 taps made 8 gal syrup.
    2017- 25 taps -built a 2x3 flat pan, and a fuel tank arch for it. 335 gal 7.34gal syrup.

    2016- 15 taps, 4.3gal syrup boiling on cinderblock arch 3 roasting pans, 1 redneck trash can with a pot, and a turkey fryer.

    2015- 4 taps 44 gals of sap made 2.25 gal of lite syrup.

  5. #5
    Join Date
    Feb 2017
    Location
    Minnesota
    Posts
    59

    Default

    Thank you for taking the time to answer! I appreciate the help!

  6. #6
    Join Date
    Feb 2017
    Location
    Minnesota
    Posts
    59

    Default

    Quote Originally Posted by barnbc76 View Post
    Which pump are you using.? Looks like you'll have room to expand, that will be nice.
    Aquatech CDP 8800 I believe it was. THat was kind of my plan....see how it goes and can always add in the future if I need.

  7. #7
    Join Date
    Feb 2019
    Location
    Murrysville, Pennsylvania
    Posts
    124

    Default

    I made almost the exact same set up last year and it worked great. You will love it. This year I scaled it up to a 2 stage unit with three 400 gpd membranes. Once I tap and try it out I will report back on how it works.
    20200129_210729.jpg
    20200129_210753.jpg
    20200129_205337.jpg
    Details here:
    https://www.sugartree.run/2020/01/di...-hobby-ro.html
    D. Roseum
    www.SugarTree.Run
    ~100 taps on 3/16 custom temp controlled vacuum; custom nat gas evap with temp and level controllers; homemade RO; SL SS filter press

  8. #8
    Join Date
    Feb 2017
    Location
    Minnesota
    Posts
    59

    Default

    Quote Originally Posted by DRoseum View Post
    I made almost the exact same set up last year and it worked great. You will love it. This year I scaled it up to a 2 stage unit with three 400 gpd membranes. Once I tap and try it out I will report back on how it works.
    Attachment 20632
    Attachment 20633
    Attachment 20634
    Details here:
    https://www.sugartree.run/2020/01/di...-hobby-ro.html
    Curious as to how many gallons per hour you got on it last year? I don't know what to expect.

  9. #9
    Join Date
    Feb 2019
    Location
    Murrysville, Pennsylvania
    Posts
    124

    Default

    Approximately 10 gallons of raw sap yielding 5 gallons of permeate and 5 gallons of concentrate per hour. This varies by sap temp.

    The flow rating of either the pump or the membrane will be limiting factor. At 100 psi the 8852 pump can push 1.2 lpm (or 0.317 gpm) but the membrane cannot exceed its max flow rating of 400 gpd (1 lpm or 0.264 gpm).

    In fact, at a 50/50 output of permeate/concentrate and 35 -40 F sap, those membranes will actually operate about 60% - 65% of the 400 gpd feed flow rating.

    ~0.65 x 0.264 gpm x 60 min/hr = ~10 gallons of raw sap/hr.
    D. Roseum
    www.SugarTree.Run
    ~100 taps on 3/16 custom temp controlled vacuum; custom nat gas evap with temp and level controllers; homemade RO; SL SS filter press

  10. #10
    Join Date
    Apr 2011
    Location
    Fayston, Vt
    Posts
    121

    Default

    DRoseum,
    How much does this weight dry and once done for the day? Do you bring in side or do you have a warm room where you RO?
    2020 same
    2019 RB10 26 taps
    2018 RO Bucket RB5 taps 20, leg tank in shed w/2 5/16
    2017 18 taps
    2016 20 taps
    2015 21 taps
    2014 30 2 gravity line, 2 hotel pan concrete arch 35 g leg tank
    2013 LP hook up in shack buckets 12 taps
    2 burner cook top 2012 finisher on a bbq tanks
    2011 rookie 2+ gal
    8 taps w/ milk jugs
    turkey cooker
    50-60 up back maybe

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