Has anyone tried the Chinese ro membranes that are available on Ebay? Are they any good?
Steve
Has anyone tried the Chinese ro membranes that are available on Ebay? Are they any good?
Steve
buy some , then during season when they blow out ask your local dealer what happened
Last edited by fred; 10-10-2018 at 05:01 PM.
Fred Ahrens
330-206-1606
Richards Ohio Maple Equipment
Ohio CDL sales rep
LaPierre Dealer
H&M maple fabricator Dealer
Service Tech/repair for all brands and electronics
don't take life too serious, nobody gets out alive anyways!
Sugaring for 45+ years
New Sugarhouse 14'x32'
New to Me Algier 2'x8' wood fired evaporator
2022 added a used RB25 RO Bucket
250 mostly Sugar Maples, 15% Soft Maples. Currently,(110on 3/16" and 125 on Shurflo 4008 vacuum, 15 gravity), (16,000 before being disabled)
1947 Farmall H and Wagon with gathering tank
2012 Kubota with forks to move wood around
I'm sure the Chinese ones would work. I'm sure all the big name brand membranes are made in China as well.
But for the price you can get them here for example at MES. I think its $230 for a 4" and $800 for an 8" it's not worth experimenting with an unknown Chinese membrane.
600 taps on vacuum
Lapierre mechanical Releaser
CDL electric releaser
2.5 x 10 CDL Venturi ( new for the 2024 season )
Home made modulating auto draw off
Homemade RO 2 x 4" membranes
CDL 16 x 16 bottler
Wesfab 7" filter press
Delaval 73 vacuum pumps
12 hives of bees
CDL sells made in China bag holders and aluminum spouts
1000 taps on vac down to 100+ buckets 99% sugars
2x5 SL Hi-Output Raised Flue Corsair evaporator
SL Short bank press with CDL diaphragm pump
Leader Micro 1 RO for 2024
Constantly changing
2010:36 gal 2011:126 gal 2012:81 gal 2013:248 gal 2014: 329.5 gal 2015:305 gal 2016:316 gal 2017:258 gal 2018:147 gal 2019:91 gal 2020:30 gal 2021:30 gal 2023:50 gal Total since 2010: 2047.5 gal
Tapping the same trees my great, great and great grandfathers tapped.
Fred Ahrens
330-206-1606
Richards Ohio Maple Equipment
Ohio CDL sales rep
LaPierre Dealer
H&M maple fabricator Dealer
Service Tech/repair for all brands and electronics
don't take life too serious, nobody gets out alive anyways!
Not to take a side, but it is probably because dealers have to cope with this issue all the time. People try to save a few $, then when they got from some cheap supplier fails, they have people beating on their doors trying to get them to fix the problem immediately. Kind of like buying after-market engine parts for your car and then complaining to Ford when the piston blows out.
Dr. Tim Perkins
UVM Proctor Maple Research Ctr
http://www.uvm.edu/~pmrc
https://mapleresearch.org
Timothy.Perkins@uvm.edu
I tap 35ish trees. If ro doesn't work I would be able to boil what I collect. I was just looking to save some time without spending a ton of money but I guess the cdl sales reps seems to think it'll fail
With 35 trees, you're probably better off looking into a micro-RO rather than a true maple RO unit (which would cost far too much, the membrane is just one part of the total cost). These are the off-the-shelf, undersink type units. They are slow, but do work. Cornell has some info/videos on them.
Dr. Tim Perkins
UVM Proctor Maple Research Ctr
http://www.uvm.edu/~pmrc
https://mapleresearch.org
Timothy.Perkins@uvm.edu
I'd like to think the CDL rep was giving you some good advice regarding what the consequences may be If it fails. Will the EBay seller be able to get you back up and running as quickly as a local dealer or supplier...
I don't think he knew that - in your case - you could do just fine without the RO.
John Allin
14x18 Hemlock Timber Frame Sugar House 2009
Leader 2x6 w/Patriot Raised Flue Pan 2009
Leader Steam Hood 2014 - Clear Filter Press 2015
Leader Revolution Pan and SS Pre-Heater 2016
CDL Hobby RO & Air Tech L25 Hi Vac Pump 2019
06' Gator HPX to collect wood & sap
14' Ski-Doo Tundra for winter work in the woods
Great Family 3 grown kids+spouses and 7 grand kids who like the woods
7th Gen Born in Canada - Raised in Chardon Ohio - Maple Capital of the World..<grin>.