RODI Unit Help

crazybanana2

Community Member
View Badges
Joined
Apr 7, 2026
Messages
49
Reaction score
22
Location
Socal
What state or country do you live in
California
Rating - 0%
0   0   0
My tds used to be 0 but its now 1. I’m unsure of what part I need to replace and how to do it, as this is my first time dealing or having to replace something with my filter (BRS 4 Stage filter) Any help would be appreciated! Thank you

IMG_2101.jpeg IMG_2103.jpeg
 
The filter cartridge on the right side is the one that needs changing… it’s the DI resin, specifically!

The included BRS DI resin (tiny plastic balls) changes color from a bluish to the tan/brownish as it becomes exhausted, and is housed inside a plastic cartridge within that blue housing! (You can use the color change to determine when it’s nearing exhaustion)

I’d recommend watching a BRS how-to video on replacing your DI resin; the primary thing to keep in mind is that you want to pack the cartridge very tight with DI resin so water cannot easily channel around the beads!
 
The filter cartridge on the right side is the one that needs changing… it’s the DI resin, specifically!

The included BRS DI resin (tiny plastic balls) changes color from a bluish to the tan/brownish as it becomes exhausted, and is housed inside a plastic cartridge within that blue housing! (You can use the color change to determine when it’s nearing exhaustion)

I’d recommend watching a BRS how-to video on replacing your DI resin; the primary thing to keep in mind is that you want to pack the cartridge very tight with DI resin so water cannot easily channel around the beads!
Thank you for your help!
 
My tds used to be 0 but its now 1. I’m unsure of what part I need to replace and how to do it, as this is my first time dealing or having to replace something with my filter (BRS 4 Stage filter) Any help would be appreciated! Thank you

IMG_2101.jpeg IMG_2103.jpeg
There are a lot of videos on YouTube which describe when and how to change the various RODI cartridges.

Tip: Google “DI resin packing set”. Those are useful for packing the resin.
 

WHAT IS THE LOUDEST PART OF YOUR REEF SYSTEM?

  • Return pump

    Votes: 4 5.8%
  • Powerheads or wavemakers

    Votes: 5 7.2%
  • Protein skimmer

    Votes: 14 20.3%
  • Overflow or drain

    Votes: 19 27.5%
  • Sump vibration or plumbing

    Votes: 1 1.4%
  • Cooling fans

    Votes: 9 13.0%
  • Dosing, ATO, or other equipment

    Votes: 3 4.3%
  • Nothing. My reef is surprisingly quiet

    Votes: 8 11.6%
  • Other (Tell us what makes the noise)

    Votes: 6 8.7%
Back
Top
Home
Post thread…
Market
What's new