• Welcome back Guest!

    MARSH is a private reefing group. Comments and suggestions are encouraged, but please keep them positive and constructive. Negative threads, posts, or attacks will be removed from view and reviewed by the staff. Continually disruptive, argumentative, or flagrant rule breakers may be suspended or banned.

RODI DI Resin beds, how many stages do you use? (1 Viewer)

SCUBAFreaky

Enjoy Life!
Supporting Member
Build Thread Contributor
Joined
Apr 14, 2020
Messages
288
Reaction score
347
Location
Seabrook
I am contemplating going from a single DI Resin bed to a triple set up with separate Anion and Cation beds along with a final mixed resin bed.

How many DI Resin bed stages do you run and why?
 

jrounding

James
Supporting Member
Build Thread Contributor
Joined
Jul 16, 2021
Messages
187
Reaction score
135
Location
Missouri City, TX
I just upgraded. Due to space constraints I didn’t have room for the triple cartridge. I added two cartridges to the system. I’m now running two carbon block before the RO because we have chloramine. For my resin I’m running BRS pro anion (blue) and a BRS pro mixed bed cartridge (purple). If you run the same setup as me make sure your color change for your mixed bed is cation. Apparently the anion depletes 5X faster than the cation generally. I’m getting 9 TDS out of my RO and 0 TDS out of my resin. I cannot comment on my resin life yet, because I just upgraded. If you have the room get the triple get it, but If you are short on room get the Anion+mixed bed. Anion removes phosphate, chloride, silicate, nitrate and phosphate. Cation removes sodium, calcium, magnesium, and metals.
 

Attachments

  • 94F148A3-7F38-4DF1-8DC5-50A5372B9C54.jpeg
    94F148A3-7F38-4DF1-8DC5-50A5372B9C54.jpeg
    267.8 KB · Views: 4
  • 8E123F14-A366-460F-8CB7-98798081E472.jpeg
    8E123F14-A366-460F-8CB7-98798081E472.jpeg
    278.4 KB · Views: 4
Last edited:

Cody

Vice President
Staff member
Moderator
Content Moderator
Board Member
Supporting Member
Joined
Jul 23, 2014
Messages
6,810
Reaction score
3,956
Location
Spring, TX
I have three DI cannisters but I only fill one or two of them for now. I have a good amount of mixed bed that I need to use before I switch over to anion, cation, then a single mixed bed. Why? Because I needed three cannisters for symmetry, and I get bored with doing the same old stuff sometimes.

This pic is prior to it being finished. I’ve had to move it for the time being for construction reasons but it should be back on the wall soon, all polished up.

9778D41A-89A2-4B4F-89CC-8DABAB5C52E6.jpeg
 

BigRick

OG Reefer
Supporting Member
Joined
Dec 22, 2009
Messages
2,393
Reaction score
1,181
Location
Cypress- Bridgeland
Hard to see from the pictures - is there enough room to use a filter wrench to remove the canisters @Cody
Easily.. the canisters brackets are external so no different then setting up a regular setup. The the real magic is the hidden sensors between stages behind the wall. Cleans it up a lot. Same setup basically as mine just very well thought out and cleanly built. I spent 15 mins.. he's probably on 3 hrs..
 

Cody

Vice President
Staff member
Moderator
Content Moderator
Board Member
Supporting Member
Joined
Jul 23, 2014
Messages
6,810
Reaction score
3,956
Location
Spring, TX
Easily.. the canisters brackets are external so no different then setting up a regular setup. The the real magic is the hidden sensors between stages behind the wall. Cleans it up a lot. Same setup basically as mine just very well thought out and cleanly built. I spent 15 mins.. he's probably on 3 hrs..
Yeah the back-stage part is cluttered and messy, but that was by design. My goal is to finish the fish room expansion by Christmas so that I can get the full situation up and running. However, when it gets dark at 5pm and everything is wet and cold, it really does a number on my motivation. I'm notorious for not building much past October/November.
 

Users who are viewing this thread

Top