Who has an Aqua Safe RO System?

[RussC]

I just purchased an Aquasafe RO system. To completely fill my resevoir tank the system is putting off no less than 5 gallons waste water. That seems extremely excessive. What are others experience with that? Also, after three complete runs my TDS reading directly out of my membrane is 60. When can I expect that to drop? Shoud I keep running it through, filling up and emptying the tank until it reads satisfactory?

[Phoneguy982]

What is your water pressure? Are you on city water or well water?

[pogodzib]

It does sound like a pressure issue to me too.

Also, what is your TDS out of the tap?

[RicksReefs]

a 4 to 1 ratio of waste/good water is normal, sometimes you
can get a 3:1 ratio.

[RussC]

I have not checked my water pressure but plan to tonight. I wanted to fill up my resevoir one more time. I am on city water. What is it that indicated it might be a pressure problem? Too high of pressure or too low? TDS out of the tap is about 215. So I understand the ratio, is that 4 gallons of waste water to every 1 gallon of RO water?

[RicksReefs]

you need about 40-45 PSI to run properly, i kicked my well pump
up to 65 PSI for better results. and yup, 4 gallons of waste to 1
gallon usable. that's why some people pipe the waste to their
washing machines or irrigation, so it's not totally 'waste' water.

[RussC]

Wow, I had no idea it would be that much waste. I have a 4.4 gallon resevoir so that could add up. I'll figure out something to do with it so it is not a complete waste. I have all kinds of plants that will love it. What happens with low pressure?

[RicksReefs]

the water isn't forced thru the RO membrane and you get even more waste IIRC. temp also plays a role too, 74*-76* being optimal.

[RicksReefs]

i know it sounds obvious, but make sure your flush valve is closed too... :)

[RussC]

Thanks for the tips. All interesting info as I learn more a bout this thing.