DI Resin being depleted after 6 Gallons of RO..
FOWLRMntFAQs
When to change DI resin
Choosing the Right RODI System
Rodi resins. REEF2REEF Saltwater and Reef Aquarium Forum
RO/DI system diagnosis? REEF2REEF Saltwater and Reef Aquarium Forum
Beat dino. Now this?? : r/ReefTank
How long does your DI resin last?, Marine and Reef General Discussion
How long does your DI resin last?, Marine and Reef General Discussion
When to Change DI Resin, and How to Maximize Cartridge Life. PT5: BRStv Guide to RODI & Reef Tanks
Probably time to buy an RO/DI unit 😅 : r/ReefTank
How To Know When To Change Your RO/DI Filters - Bulk Reef Supply
Dual deionization add on canister kit complete with triple TDS Meter and pre-packed color changing DI cartridges!, Dual DM-1 TDS Meter already
Dual Deionization Canister with DM-1 Dual TDS Meter