I swapped out all the other filters tonite, and with some hose swapping, we determined it is the membrane that is shot after two months. :eek:

I have been back flushing it regularly.

I guess I'll see what they have to say. :sad:

Deb, does the RO membrane come out of the housing...? :confused: . I have never had to take mine apart. I thought my instructions read the membrane is removable but it's extremely difficult given the expansion once saturated. This of course was the bit where the manual recomends replacing the entire unit once something fails as opposed to replacing only the required parts... :rolleyes: . Just a long shot but perhaps there's blockage in the housing inlet or outlet ?

Hey Deb......... don't forget the tempurature of the input water has an effect on your output. The colder it is the less production you will get.

Cheers,
Vic [veng68]

Yes Victor, I do remember that from last winter. :eek: But it's not that cold here yet, and the output is far less than the middle of last winter.

Doug, maybe I can use my membrane housing from my old unit then?

thanks i'll try that tonight
how do you know when ur membranes gone? tds meter? crappy i should get me one of those meters
i base ev'rything on what happens on my tank .. once algae starts growing usually means time to replace cartrigde filters... algae dissapear after three consicutive water changes

Hey Deb,

Did you fix your problem?

Cheers,
Vic [veng68]

After going through some checklists etc with AquaSafe, we finally tried another membrane and the unit works fine. I don't know if the membrane was defective or what. So far, they haven't replaced it.

I just wanted to let everyone know that Aquasafe replaced the membrane for me :mrgreen:

Same problem and after speaking with Aquasafe I have pinpointed it to plugged prefilters. Drops the pressure making the shutoffvalve not perform.

My Aquasafe system was doing something similar. It would fill the resevoir tank and then shut off only to drain the entire tank out the drain line and start over again. It would do this continually unless I shut off the water supply to the unit. It turned out to be the check valve on the outlet of the memnbrane. I contacted Aquasafe and they sent me out a new one. It works fine again.