Thanks to everyone for the good info here. It's helped me diagnose some other issues, but this is the one I'm having now.
I have a BRS 75gpd 6 stage Reef & Drinking water RODI unit and even though my TDS is ALWAYS zero, my DI color changing resin and 5 micron sediment filter is exhausted after a rate of every 2 months. Typically, I'm assuming under "Optimal" conditions, those two filters should last much longer.
After researching what causes the DI Resin and sediment filters to delete more quickly, I realized that I'll end up having to change the filters more often because I have hard water from a well. I am running a water softener, so that helps, but I also realized BRS recommends all their RODI units have a minimum of 50 psi for maximum filter efficiency. My RODI unit's pressure gauge was reading approximately 30 - 35 psi. I thought this was odd because I never would have thought the house's water pressure would be considered low at all. After checking the pressure gauge on the well pump, it was set at 40/60.
Next, I took a pressure reading from the reservoir tank and it had a psi of about 20 psi, which is the first thing I rectified. The reservoir tank should be approximately 2 - 4 psi under the "cut in" range, which would put it at about 36 - 38 psi, do i then knew the reservoir needed pressure added. I increased the well pump's pressure switch to "55/75" and added pressure to the reservoir of about 51 psi. Btw, the reservoir it's rated for up to 100 psi, do i knew I had a ways to go before I exceeded the rating.
So, now I thought I should be got to go because at least I was at the minimal psi amount. Ya, not so much lol. My RODI pressure gauge increased, however, it's still reading at about 40 - 45 psi. I'm not sure if I should increase the water pressure on the well pump and add pressure to reservoir again, just get a booster pump for the RODI, or just live with it and change the DI Resin and sediment filter every couple months?
I am planning on aging the "Water Saver Plus" upgrade to my RODI unit soon, I'm not sure if that will make a difference with my current issue though.
I'm certain that there's not a problem with the well pump, reservoir tank, or pressure switch because they are all new and I had them inspected by a relative who is a licensed plumber. I think the fact that I have hard water might be causing a mineral build up somewhere in the water lines, thus decreasing my pressure, but I'm not certain. Even after increasing the water pressure, I'm still going through filters at the same rate. I can live with this of I have to, but I'd prefer to spend that extra filter money on Reef livestock and gadgets!
Any advice is appreciated, thank you!
