I've finally hooked up my Aquatic Life Twist-in 4-Stage 100 Gallon Per Day Reverse Osmosis and Reverse Osmosis Filter. It works very well as expected and I am very happy with the zero TDS water it produces. I have a pressure of 60psi which is enough to generate all the water I need to keep my 120 gallon reef tank full and then it tops up my 30 gallon holding tank weekly as needed. I also added an electronic valve to the timer so it only opens for 30 minutes each night. I also added a pressure gauge to check my home pressure on the unit. I also added a 2 position TDS meter to ensure the filter is fully functional. One complaint is that when the float valve is at its upper limit because the sump is nearly full, the unit shakes the plastic tubing connected to the check valve. quite strict. So my refill can take 5-10 minutes of shaking each night as the amount of water needed to fill my reservoir can vary. But since the pump isn't involved, I'm not too worried about high pressure or anything breaking or falling apart. My other complaint is that the filters themselves are difficult to screw in. can break the top of the holder with enough pressure and force required to lock it in place. Hopefully next time I swap them out it'll be easier.
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