Ice maker with RO+remineralization vs DI
I recently upgraded the RO system hooked to my fridge with a 7 stage iSpring system because the old one was extremely slow when dispensing water. My new system has a remineralization cartridge, is there any cause for concern as far as the added minerals causing scaling or buildup in the ice maker? I can’t say I really mind the taste of regular RO water so removing it wouldn’t be a big deal.
Would it be best to replace it with a DI filter? If so I was wondering: the purpose of a post carbon/polishing filter is to mitigate the rubber taste from the bladder of a tank system. I see that iSpring’s tanked DI system has a post carbon filter as the second to last stage before the DI filter. I also see that a common complaint with their DI filters is a fishy smell in the water that comes from the resin in the DI filter.
Would putting the polishing filter as the final stage after the DI filter mitigate this potential fishy smell as well as the rubber smell/taste from the tank bladder? If so why doesn’t iSpring do it that way? Does whatever the polishing filter catches deplete the DI filter quicker or does the polishing filter add dissolved solids that the DI filter would have removed?