150 GPD Reverse Osmosis Membrane
150 GPD membrane features a 98% rejection rate at 65 PSI which makes it the most commonly used membrane when speed is the primary importance. If you require faster water production and have good water pressure this is one of the better options.
BRS generally recommends the use of the 75 GPD DOW membranes because it offers 98% rejection at easier to obtain water pressures. The higher rejection will result in better quality water and lower DI resin consumption.
Flow and rejection rates are based on the following:
- 550ppm soften water
- 65 PSI
- 77 degree water
- 15% Permeate Recovery
- Data taken after 30 minutes of operation
It is very important that the water pressure going into the membrane be at least 65 PSI or the membrane will not function at specified rates.
Hope this helps!
I let my two 75 gpd RO membranes dry out while redesigning my setup. They seem to make very little product water now. Did I ruin them? Will they work better after soaking a while? Should I replace them?
Thanks for letting us know. In this situation while you can attempt to run them most likely the membranes will need to be replaced. Feel free to let us know if you have any further questions!
Our 150 gpd water saver systems will use two 75 GPD membranes back to back.
It sure will. Just be sure that you have enough water pressure to meet its higher demands and that you change your flow restrictor to a 150gpd flow restrictor (assuming you don't have a 150 already).
That system would be 2x 75gpd membranes for a total of 150gpd.
Assuming you treat them nice by keeping up on the prefilter changes, proper flushing, etc, they will generally last 3-5 years and can even last much longer.
The 150gpd membrane will fit just fine into the same membrane housing. You will need to make sure you also replace the 75gpd flow restrictor with the 150gpd flow restrictor.
Login and Registration Form