I think the biggest reason we use RO is to lengthen the life of the DI resin.If you only use DI,the resin will have to be of a very high quality (not mixed bed)or you will be recharging between every use.Ive been looking into this for quite a while now and it seems Kati/ani from Germany is the way to go.Seems expensive at first,but the life of the resin and the ability to recharge numerous time would make it worth looking at.Also if you are having a problem finding lye for recharges,check out the soap stores.Lye is used to make soap,and these places usually sell it for making home made soap.
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