In the interest of not posting repetitive questions I just re-scanned this entire thread, and I don't think I've seen a question like this addressed. I built a copy of your initial system a couple of years ago, with an aquatec 8855 pump, 4 150 membranes, and then bought 4 250 membranes last year when I saw them for a good price, but didn't use them as the season was about over. I just priced out a new aquatec 8855 pump, pressure gauge, and all the rest to create 2 systems and it comes to about $215. I see I can buy a procon 15 - 125 gph pump with motor with up to 175 psi for $180. Question...should I skip the 2 system setup and go with the procon? Will it give adequate flow and pressure for 8 membranes at the above capacity? I have to admit there was one flow rate/recovery chart that went beyond my paygrade, so if that explained it I apologize. Just wondering what the procon can run with 4 150 and 4 gpd membranes - all of them, or do I need to scale back (or can I scale up??) Thanks... you and all the contributors here have saved so many people so many hours by sharing what you've done with us.
2014 - 8 taps, turkey fryer, 130 gallons sap, just under 2.5 gallons syrup.
2015 - 50 taps and counting.
2016 - 60 taps on 3/16 and a Bill Mason evaporator on order.
2017 - 115 taps on 3/16, homemade r/o.
2018 - 150 taps on 3/16, r/o a big help, but lots of leaks killing yield.
2019 - sticking with 150 taps or maybe less, focusing on good vacuum and less waste to increase yield. Doubling up my r/o, and made a vacuum filter that looks promising.