RO unit NEEDS HELP

[robert]

Yes, buy 75 gpd membrane and restrictor. Restrictor is the key to keep flow at rated level for the membrane. Booster pump is a good idea if the pressure of your water supply is not adequate. I would start without it, save some $$$ . Measure the production level of your setup and see how far behind gpd you are.

Originally Posted by thanhjenn

So, i should buy a 70 gpd? Are all membrane universal? do i need to buy a flow restrictor also? is a pump booster a good idea also?