Hi all i got this RO unit and it is producing one drop of water every second. Guess it will take 7 days to fill my 180 liter tank. Is that normal? 
How fast are reverseosmosis units suppodsed to work?
- Thread starter arifrcsi
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Without knowing exact specs on yours, it's hard to say. A 20 gallon per day unit is a common size found at retail. Also, they use about 3 gallons of water to make 1 gallon of R/O water.
Keep a close watch on your maintenance schedule and filter changes. Even if they told you a certain time-frame, remember, the real maintenance schedule is based on water passed through the unit.
Keep a close watch on your maintenance schedule and filter changes. Even if they told you a certain time-frame, remember, the real maintenance schedule is based on water passed through the unit.
thankyou. just in the last hour i moved the unit downstairs where the pressure is greater. I reckon this with halve the period to say 3 days 
Most RO units need a lot of pressure (like 80 PSI) to work correctly. Are you using well water? If so, there is a special unit made for less pressure I believe.
The temp of the water can affect the amount of water it will produce. I’m thinking about 78* is about right for most units.
I use the cold water tap all the time and that water is always pretty cold. It only 10F outside right now. I get the 25 gallon a day it is supposed to produce all the time.
Dependent on the membrane itself, the area of the membrane, the pressure differential across the membrane, the rejection rate, the temperature,and the TDS of the input water. But most do specify output at x pressure and y temperature and z rejection rate.
Bought it yesterday, it is supposed to produce 150 liters in 24 hours but over the past 4 hours it has produced only 4 liters say half the capacity, though in sayng that the water hardness input is about > 16 degrees GH so guess it will take longer.
Thanks for replying
Thanks for replying
Harder water (more disolved solids) will slow it down a bit. Someone asked if you were on a well, if so, a unit made for a municipal water system probably won't work.
After it has been running for a couple of days, things should 'settle in' and give you a better idea of what you can really expect.
After it has been running for a couple of days, things should 'settle in' and give you a better idea of what you can really expect.