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Old January 28th, 2017, 02:04 PM
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I'm in the process of building an ro I'm using a 4x40 membrane and i didn't think about the feed in to the membrane canister on the bottom theres two holes one in the center and one off center. Does the other just get plugged. I'm confused about the whole thing (again). which input does the sap go in to the outside or center. i thought the sap went into the center and the water push through the membrane making the permeate. now im not so sure. very confused any help would be great. i appreciate you time. thank you
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Old January 28th, 2017, 03:11 PM
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The raw sap feeds into the outside port , you plug off the center port . On the other end of the housing the permeate is the center port and the conentrated sap is the outside port . Don't forget that the lip seal goes on the feed end (inlet) side of the membrane .
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Old January 28th, 2017, 03:26 PM
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Thank you so much Wishlist. when you say the lip seal your talking about the rubber seal on the membrane? (i got the membrane from MES and it is installed already with the flow arrow up).
One other question what is the best thing to use on the o-ring for lubrication when sliding the membrane in?
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Old January 28th, 2017, 03:43 PM
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With both center ports open you should be able to see straight through. It does not matter which end you let the permeate out.
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Old January 28th, 2017, 09:18 PM
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waim- thank you Would it be better to run the permeate through the bottom? My thought is would the pump work less because gravity would natural want it to run down?
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Old January 28th, 2017, 09:39 PM
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Originally Posted by wishlist View Post
The raw sap feeds into the outside port , you plug off the center port . On the other end of the housing the permeate is the center port and the conentrated sap is the outside port . Don't forget that the lip seal goes on the feed end (inlet) side of the membrane .
Now let me get this straight,,,, My sap is coming in from the bottom of housing. So the lip seal would be on the bottom of the membrane when in housing, with "V" grove up?
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2014 300 on tubing
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2012 Built my own arch with AUF for drop flues when i get it using old flat pans,,, 200 taps
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2009 and before cooking out side
2008 bought my piece of land
1972- 2008 cooked as work permitted
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Old January 28th, 2017, 10:10 PM
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Originally Posted by mountainsidefarmmaple View Post
waim- thank you Would it be better to run the permeate through the bottom? My thought is would the pump work less because gravity would natural want it to run down?
Wouldn't be much different about pumps.
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3 X 12 Thor pans on homemade arch
1986 Seprotech 900
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Old January 28th, 2017, 10:11 PM
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Now let me get this straight,,,, My sap is coming in from the bottom of housing. So the lip seal would be on the bottom of the membrane when in housing, with "V" grove up?
Open end of V goes toward sap input. V is then pushed open to make the seal.
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Old January 28th, 2017, 10:22 PM
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Open end of V goes toward sap input. V is then pushed open to make the seal.
I've been washing the RO but,,,,,, I had the seal on top,,, concentrate end ,,with V facing down ,,, so upside down and wrong end. I'm so confused I don't know which end is up Sorry to hit you with so much but I do have some sap and need to do something with it tomorrow,,,, 100 gal,,
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2014 300 on tubing
2013 new Smoky Lake 2x8 with 6 foot drop, 280 taps with 130 on tubing
2012 Built my own arch with AUF for drop flues when i get it using old flat pans,,, 200 taps
2010 Built a sugar shack using used tin,,, now got a roof over me
2009 and before cooking out side
2008 bought my piece of land
1972- 2008 cooked as work permitted
1972 Mom and dad made some syrup in kettles for first time
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Old January 29th, 2017, 03:55 PM
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Here is a diagram of the brine seal( oring) I found a lot of good info on this site, even though your using MES membranes they are very similar to XLE membranes.

https://dowwater.custhelp.com/app/an...etail/a_id/452
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