Help me understand RODI filter replacement.

[dmsc2fs]

BLUF: Do I replace all filters at once, or how do I determine this?

I have been using my RODI for a bit now and I noticed today that I am getting 2TDS after my final stage. The question I have is what to replace? Do I replace all filters or just the final DI filter? How do I determine this? Additionally if I am getting 2TDS out of my current system and I keep the DI in place but add a second DI filter after the current depleting filter wouldn't that give me extra time with my new DI since the current DI is still filtering out some amount of solids. Even if it is a small percentage it would still work out as a net benefit?

 

[Mr. Mojo Rising]

I replace my DI about every 5-6 months, and replace the other filters about once a year.

 

[Woodyman]

BLUF: Do I replace all filters at once, or how do I determine this?

I have been using my RODI for a bit now and I noticed today that I am getting 2TDS after my final stage. The question I have is what to replace? Do I replace all filters or just the final DI filter? How do I determine this? Additionally if I am getting 2TDS out of my current system and I keep the DI in place but add a second DI filter after the current depleting filter wouldn't that give me extra time with my new DI since the current DI is still filtering out some amount of solids. Even if it is a small percentage it would still work out as a net benefit?

Give this a read, it will help answer those questions your having.

Short answer is no, they don't *typically* all require a change at the same time.

RO/DI Basic Guide

There are always a lot of questions regarding which RO/DI setup do I need, how many stages, how do I know when to change filters/membranes, I’m getting a weird TDS value, etc. Hopefully this clarifies a few things and helps some of you out one day. My first recommendation would be to find the...

www.reef2reef.com

 

[dmsc2fs]

Give this a read, it will help answer those questions your having.

Short answer is no, they don't *typically* all require a change at the same time.

RO/DI Basic Guide

There are always a lot of questions regarding which RO/DI setup do I need, how many stages, how do I know when to change filters/membranes, I’m getting a weird TDS value, etc. Hopefully this clarifies a few things and helps some of you out one day. My first recommendation would be to find the...

www.reef2reef.com

Thank you. That explained everything.

 

[Woodyman]

Thank you. That explained everything.

Your welcome!