The RO systems are rated at GPD but I’m more interested in (max) GPM. Anybody have any recommendations?
Thanks for the “order of magnitude” reality check! very helpful...Unless you have a need to make several hundred gallons, the practical system for a homebrewer is going to be 50-100 gallons per day with a holding tank of some sort. You can run a few 200 GPD membranes in parallel but you'd need a booster pump to get the inflow to about 100 PSI to make it efficient.
You certainly don't want to run a "few 200 gpd membranes" with a typical residential-scale system (10" x 2.5" prefilters with 1/4" OD tubing and 1/4" fittings).Unless you have a need to make several hundred gallons, the practical system for a homebrewer is going to be 50-100 gallons per day with a holding tank of some sort. You can run a few 200 GPD membranes in parallel but you'd need a booster pump to get the inflow to about 100 PSI to make it efficient.
The question was about Max GPM. I prefaced it by saying you need that but if you really wanted to crank "max GPM" like the OP asked, paralleling multiple membranes with the pressure of a booster pump would certainly do it. I don't recommend it.You certainly don't want to run a "few 200 gpd membranes" with a typical residential-scale system (10" x 2.5" prefilters with 1/4" OD tubing and 1/4" fittings).
Russ
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