I have recently bought a second Pure Freedom 200 GPD Compact Reverse Osmosis System, the reason being that the first system was producing less than 200 litres a day with a pump.
The water supply is a single pipe from my house mains into a tap in my garage and then split to connect to each RO unit.
Since getting the 2nd unit in April and getting approx 350 ltrs a day at first there has been a gradual decline in production and I am now only getting about 180 ltrs a day from the two. Does anyone have any ideas as to what is going wrong and what I could do to improve production?