A response to another thread just made me realize I really should add a second membrane to my rodi filter. I currently use a dow filmtec 100gpd membrane, if I add a second membrane do I just make it the same membrane so they have matching gpd or does it matter? Also I have an old membrane housing (it's around 20 years old) sitting around, would there by any issue with using it assuming the seals don't leak from age or would I just be better off buying the water saver kit from brs? Does the size of the restrictor change when adding a second membrane?
Just to make sure I do it correctly the waste water line from membrane 1 goes to the input side of membrane 2. The waste from membrane 2 goes through the restrictor to the drain. The filtered water from both membranes get tied together with a push fitting wye and then go to the di.
My pressure is plenty high enough to support 2 membranes so is there any reason not to add the second one? If not I should have done this years ago.
Just to make sure I do it correctly the waste water line from membrane 1 goes to the input side of membrane 2. The waste from membrane 2 goes through the restrictor to the drain. The filtered water from both membranes get tied together with a push fitting wye and then go to the di.
My pressure is plenty high enough to support 2 membranes so is there any reason not to add the second one? If not I should have done this years ago.