I finally setup a monitoring system for my reverse osmosis system. I have 1 pressure sensor to track mainline water pressure, 2 flow meters to track usage and efficiency and 2 TDSsensor to track concentration. This was a pretty fun project and it was the first time I was working with a pulse based water flow meter, I had to calibrate it to match the measurements I was getting in reality. I even got a good video with the oscilloscope of the pulses while the system was running. Using this to set PMs so I am back flushing and replacing filters when efficiency starts to drop.
