I have been buying NGCCDI resin from the same company as RODI equipment for 20 years. They carry a good DI resin that lasts 4 months before it runs out. I thought I'd try this brand. I've read reviews here that it doesn't last long before exhaustion. I think I will. It only took me 10 minutes to do the following, whatever my method was; Remove the DI canister from the RODI device, remove the end cap and flush with fresh RODI fluid. I always wash in the sink above the disposal. (to make falling bullets easy to dispose of) I fill with a clean spoon, squash with my fingers, add fresh RODI and repeat until it stops settling and won't leave room. Then I rinse the threads and close the canister with a lid. Tie the bag tight, place back in the Mylar bag and store in a dry, cool, dark place until needed again. Drain 3 to 5 gallons of purified water from ZERO TDS.
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