dendronepthya
Premium Member
The RO system is a commercial model made by Spectrapure (actually, everything you see came from Spectrapure). It is a new model called the PSP1000. In ideal situations, it can make 1000 gallons per day at a 1:1 ratio of clean to waste water. My conditions are far from ideal though because my water is so cold. I expect to get something closer to 600 gallons per day. The nice thing about these units is that the membranes last a very long time. Tech support at Spectrapure told me it is not uncommon for a membrane to last years if properly maintained. It was news to me that a RO membrane could be "maintained," but this system has a second pump in it that is connected to the clean water reservoir. When the system is inactive, it turns on and back-flushes the RO membrane allowing it to soak in clean water while not in use. Supposedly, it extends the life of the membrane which is good because a replacement will cost me somewhere in the neighborhood of $250.
I do not have a DI system yet. I was going to see how low the TDS will be without one. If the reading is relatively low (under 100 would be nice considering I am starting at about 850), I might just skip it.
I do not have a DI system yet. I was going to see how low the TDS will be without one. If the reading is relatively low (under 100 would be nice considering I am starting at about 850), I might just skip it.