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  1. Replies
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    Hi, I am the "RO Bucket Guy" so I am obviously...

    Hi, I am the "RO Bucket Guy" so I am obviously biased but I am also honest. Most sugarers are handy and totally capable of putting an RO system together. The two main issues are the time you are...
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    Generally a high pressure condition isn’t a...

    Generally a high pressure condition isn’t a concern. Most booster pumps have an adjustable bypass built into the pump head. In addition, they can’t really get over 150psi anyways (when...
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    Flow Rates

    Hey Bryan,

    The 2x150gpd membranes will get you about 5gph on a single 50/50 pass (taking 2% sap to 4% sap, at 40 degrees fahrenheit). Series and parallel are going to give you virtually the same...
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    bad membrane

    It looks like it came delaminated from the permeate draw. Sap was probably flowing into the crack (circled in red), and running into the permeate discharge. 19993

    Glad you are up and running,...
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    Glad to hear you found a problem. I would put...

    Glad to hear you found a problem.

    I would put the membrane from #2 in a different housing and do a second test (to isolate a membrane or housing problem). After that, it should be pretty straight...
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    Flushing

    Try recirculating 10 gallons of well water through the system for 30 minutes. Run it dry, and then process some sap. After 10 minutes of processing take a concentrate and permeate test.

    What...
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    Testing each membrane

    It might be easier to run a separate permeate line from each ro housing. Test each permeate separately and isolate the contaminated one(s). It could be a poorly wound cartridge, or even a cracked...
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    Sugars aren't very effective in lowering the...

    Sugars aren't very effective in lowering the freezing point of water. A 4% solution would probably only freeze 2 or 3 degrees F below pure water.

    Carl
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    The RO Bucket has used two different membranes...

    The RO Bucket has used two different membranes over the last two years. We were using the membrane solutions ones but have since sourced a higher quality, tighter wound 400gpd membrane (if you look...
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    JCN055 - the aquatec 8800 series uses a universal...

    JCN055 - the aquatec 8800 series uses a universal motor, it can actually run off of AC or DC. A 24V DC transformer rated at 5 amps will suffice in place of the 24Vac transformer.
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    Yes, the vials we sell are both preservative and...

    Yes, the vials we sell are both preservative and flush. Our single pack and 5 dose pack are the same concentrations.

    Carl
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    I too use a Hanna. It works up to 85 brix and has...

    I too use a Hanna. It works up to 85 brix and has always given consistent results. It also has auto temp compensation,
    But it takes a minute or 2 to properly correct (during that time the sample is...
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    Hey Jacob, I posted a video regarding membrane...

    Hey Jacob,

    I posted a video regarding membrane maintenance on our website. http://www.therobucket.com/Wordpress/resources/video-library/

    Permeate rinses will hold you over for a couple days if...
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    Ro Bucket maintenance

    You can download the users manual off our website. It gives detailed descriptions for flushing and maintenance between uses. It's important to get the used prefilter out of the system and flush it...
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    Our ro bucket can be used for dual purpose. We...

    Our ro bucket can be used for dual purpose. We have people using them for greenhouse water and drinking water. You would want to swap the 400gpd maple membrane with a 100gpd water one in the off...
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    Glad to hear! It can take up to 5 minutes for...

    Glad to hear! It can take up to 5 minutes for the system to shut down. Other people have said the same thing. If you go past 50/50 sometimes residual pressure will keep the switch close. I am doing...
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    Bad Syrup

    Hey jdircksen,

    Was your syrup stringy?

    Could be from nasties in your ro, or from old sap sitting around.

    Was it a butterschothy flavor? It could have been diacetyl or metabolism off flavor....
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    Filter location

    An aquatec 8800 will easily self prime through a 5 micron filter. When it doesn't you'll know it needs to be changed.

    The 125psi really isn't a problem on the filter. Unless it is entirely...
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    Membrane fouling

    Great info hags. Indeed, the membranes are getting worked in parallel.

    It is important to remember that a 400gpd tfw membrane is only rated at 25% capacity at 32f. A 400gpd membrane should flow...
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    Three membranes with a 400gpd booster or smaller...

    Three membranes with a 400gpd booster or smaller will not need more than 1/4" hose. If you start getting to 60 or 70 f the membranes might pass enough permeate to require a 3/8 inlet. I tested it...
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    Got ya the xle is rated for 99% rejection rate....

    Got ya the xle is rated for 99% rejection rate. Most 3012's are 96-98%. The Dow are rated the highest. I do know that it's not uncommon to see up to .02 % sugar in the permeate with the 3012's when...
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    Membranes

    The 3012 is the "cartridge" size. The housing will fit multiple membranes between 200 and 400gpd (with the 3012 designation). The 3013's are a little taller and skinnier. I've seen 600gpd membranes...
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    I'm the ro bucket guy. I sell the plastic valves...

    I'm the ro bucket guy. I sell the plastic valves for $10. Parts prices are listed on my website, or give me a call at 3155324003. Thanks!
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    I'm the RO bucket guy

    Hey! Saw you were looking for an RO setup. I have a website up now at www.therobucket.com. You can check there for some options and info. Feel free to contact me thru email.

    Carl
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