Review on 🔧 Optimized Manifold Pressure Transformer 6840 2J03 B224 by Crystal Wilson

This pump very quietly increases the pressure to my reverse osmosis system from about 40psi to 90psi at the maximum setting. I considered the 8800 but read a few reviews saying it was loud. The 6800 is very quiet - I have to put my hand on it to feel it work. I mounted it on the wall in my basement, but I imagine if it was under your sink you wouldn't hear it. Higher pressure increases the amount of water I can produce from a few gallons per day. clearly exceeds the rating of 75 on the Filmtec membrane. Another thing that higher pressure does is increase the purity of the water. I got about 35ppm TDS at low pressure and now I'm getting 9ppm. The shutoff switch is set at 40psi and appears to be adjustable, but I haven't fiddled with it yet. There is a set screw on the pump to adjust the pressure, which works well.