Should I change my RODI filter?

[JCOLE]

I have an aquatic life RO buddie and it is a little over a year old. The DI membrane has 95% changed colors and spent. I justed tested my RO reservoir water and it is still at 0 TDS.

Should I change the system out or run until I get a higher TDS reading?

 

[NinnJinn]

I personally would just keep running until your TDS starts Rising....

 

[NinnJinn]

When my DI resin gets to about what yours is, that's when I order my DI resin and then When mine goes from 0 to 3 TDS that's when I change the filters.

Depending on how much water you make at a time may require ordering sooner than later. When I make water I typically make a hundred gallons at a time.