I would try to be patient. Purchased RO water can get to be expensive and inconvienient to boot. Low water pressure and low water temperature both lower the output and efficiency of a RO filter. What I would do is set the RO water to running in a five gallon bucket and the drain water from the RO filter into a trash tote or other large container. Let the unit run untill you get around two gallons of good RO water in your bucket. Then measure the amount of RO water you got versus the amount of waste water. Here in Alaska RO water runs around 50 cents a gallon. Tap water runs 2.5 cents per gallon. Which means if I do not count in the cost of the RO filter or the replacement cost of filters into the water costs I can allow 20 gallons of waste water for each gallon of good RO water produced. I get a 1 to 5 ratio now , but I spent, with booster pump and solenoid valves, around $200 for that efficiency, however my RO water now only cost 15 cents per gallon. I also added a pressure tank and sink faucet and DIO filters but that was later. Before I got only 8 to 9 gallons per day with 20 gallons of waste water for each gallon of good RO water produced. At the RO filters worse it cost me more to produce the water than to purchase it. But even with very cold Alaskan tap water and water pressure at half the RO filters recommended water pressure it only cost 2.5 cents more to produce the RO water at home. However, the cost of tap water and RO water differs every where.