High Efficiency RO/DI Systems

[Myka]

I really need to do something about my 1:4 RO production (good:waste). Our water is metered and they use the water use to calculate septic use as well, so double ding!

Anyway, I've been scouring high efficiency RO systems and looking closely at description and pictures. I think the only difference between high efficiency and normal output is a booster pump and an auto flush kit. I believe the idea is simply to push the water through at a higher pressure and the auto flush keeps the membrane running at peak performance. I believe this can be done with typical membranes.

Does anyone know differently?

[Skimmerking]

Mindy those ones that are 1;1 ratio, well the way that its stated that the auto flash kicks in ,however there isn't any power mech's on there that would do that its just a fancy up flush system my system has an extra filter one for 5M-CArbon-1M membrane-DI

[phi delt reefer]

do you think the efficiency could have something to do with how cold our water is? This company is promising 1:2 ratio on their cold water rated membranes;

http://reefbuilders.com/2011/04/07/g...old-membranes/


I just put my hand in a bucket of cold water from the tap for 5 seconds to adjust a heater and my hand started to get numb.


Most of us have good pressure - but Canadian water is frigid!

[Myka]

Originally Posted by asmodeus

Mindy those ones that are 1;1 ratio, well the way that its stated that the auto flash kicks in ,however there isn't any power mech's on there that would do that its just a fancy up flush system my system has an extra filter one for 5M-CArbon-1M membrane-DI

No plugins eh? I know one I saw for sure had a booster pump attached to it. Yours is 1:1? Which brand?

Originally Posted by phi delt reefer

do you think the efficiency could have something to do with how cold our water is?

I get 1:4 ratio with semi-warm water around 75 degrees. If I run straight cold water the flow slows down a lot, although the efficiency doesn't change.

[Skimmerking]

No Mindy I don't have one I still have the original one from 2002 and just add filter to it as i go. i know that mine doesn't give off alot of waste thou. DOW membrane and i still don't have a flush n mine. my water here in the East end its like 850 by the time it gets to me. so I go through 2 membrane in a year,

[Myka]

Originally Posted by asmodeus

No Mindy I don't have one I still have the original one from 2002 and just add filter to it as i go. i know that mine doesn't give off alot of waste thou. DOW membrane and i still don't have a flush n mine. my water here in the East end its like 850 by the time it gets to me. so I go through 2 membrane in a year,

Ew! That sucks. My tap water is usually between 120-160 ppm, so my membranes last a couple years(ish). I'm using a Filmtec 150 gpd membrane. I have a manual flush that I use at the beginning, end, and a few times during the day as I'm filling my reservoir. Takes all day.