When should I replace my rodi filters?

[Clownshow]

Can someone help me figure out when I should replace my cartidges in my rodi filter? It says replace di resin color completeley changes but when do I change the others?

 

[Reef Tripp]

I create a good rule would be every six months, I mark the glasses of my filters with the date to know, but I also have a psi meter and a tds meter, for monitoring, when the pressure drops or the tds rise, I change the filters.

 

[mdb_talon]

There is no easy answer as it depends on how much water you make,quality of membrane, and if you flush it. RO membranes can last 3+ years. Sediment and carbon filters generally need to be replaced more often...but again varies by water volume and specific filter.

 

[Research Monkey]

I'm new to making my own water, but my understanding is that its different for everyone based on how your tap/well water is. It also depends on how much water you're making. I purchased the inline TDS meter to monitor the membrane and the di. Also purchased a pressure gauge to monitor the sediment/carbon filters going into the membrane. Everything i've read says 6-12 months on average for the sediment/carbon and 3+ years on the membranes.

 

[Clownshow]

There is no easy answer as it depends on how much water you make,quality of membrane, and if you flush it. RO membranes can last 3+ years. Sediment and carbon filters generally need to be replaced more often...but again varies by water volume and specific filter.

I have an aquatic life rodi filter that I have been using for about 6 months. I usualy make around 4 gallons of water every two weeks.

 

[mdb_talon]

I have an aquatic life rodi filter that I have been using for about 6 months. I usualy make around 4 gallons of water every two weeks.

If you to flush it regularly that should likely last 3+ years at that volume. Still cant say for sure exactly how long it will be effective, but should be quite some time. It is good to get a TDS meter. Either inline or external pen type. They are pretty cheap and RO filters are not if you start replacing them before need to.

 

[Ludders]

TDS testing will reveal the answer to your question for DI resin changes. I do mine about twice a month.
Membrane, carbon and sediment about ever 6 months, but this is as a result of poor supply water from the mains. I certainly do not drink our tap water, straight off the supply.

 

[Gtinnel]

I replace sediment and carbon if I see a pressure drop before the membrane, or when I can see my first sediment filter get dirty.
The di and membrane I completely base off of tds after each stage.

 

[Research Monkey]

I replace sediment and carbon if I see a pressure drop before the membrane, or when I can see my first sediment filter get dirty.
The di and membrane I completely base off of tds after each stage.

How much of a drop do you base it on?

 

[Gtinnel]

How much of a drop do you base it on?

I don't usually see too much of a pressure drop but if I know my filters haven't been changed In a while and my pressure is around 5 psi lower than normal I will change them. I'm not sure if this is the correct way to tell but it's worked for me. Most of the time I change based on the color of the sediment filter before seeing a pressure drop.