Ro/Di Help

[demodiki]

I have a 2.5 year old Water General machine. Six months ago I replaced the RO membrane with a new one. About 2 months ago I changed out my DI resin and also changed the particle filter. Soon after, I was only getting a very light trickle from my system.

I just got in some new resin, carbon blocks and changed all those as well...I thought perhaps my carbon blocks were...blocked! No luck :(

The sink that the system is connected to in the garage still gets great water pressure. I am just not sure what could be wrong. All of my new filters, etc....are from Buckeye Field Supply.

Any thoughts?

[caferacermike]

My guess would be that your first set of filters may have been broke or not of good quality. I hear this a lot from people that have RO systems, at first I was guilty as well. In perspective let's think that most systems are 75gpd. That really is a trickle. The math to support. 60 minutes in an hour x 24 hours in a day= 1,440 minutes in a day / 75gpd = 19.2 What that means is that a typical system takes 20 minutes to produce 1 clean gallon of water. That is just a trickle. It would take almost an hour and half to fill a 5g container. If your membrane was torn water may have been blowing right on by and into the resin chamber. There is nothing in that chamber to cause it to slow down. Your resins could still absorb the excess TDS until spent, thus giving a true reading of 0-4PPM of TDS until exhausted.

[Texreefer]

I have the same problem right now and I have determined that too much chloramine in the water has clogged up my new RO unit and will have to buy another carbon filter to help remove chlorine from water

[BuckeyeHydro]

I have a 2.5 year old Water General machine. Six months ago I replaced the RO membrane with a new one. About 2 months ago I changed out my DI resin and also changed the particle filter. Soon after, I was only getting a very light trickle from my system.

I just got in some new resin, carbon blocks and changed all those as well...I thought perhaps my carbon blocks were...blocked! No luck :(

The sink that the system is connected to in the garage still gets great water pressure. I am just not sure what could be wrong. All of my new filters, etc....are from Buckeye Field Supply.

Any thoughts?


You're in a position that a pressure gauge plumbed in the system would have helped you diagnose the problem. If you know that the sediment filter and carbon filter are not clogged, and you know that adequate pressure to run the system is reaching the membrane, then it sounds like the membrane is loaded with scale and needs to be replaced.

Russ