Join Date: Oct 2006
Location: Leesburg Virginia
I have an inexpensive RO buddy without Di. The main reason I use it is rather high kh and dh. When the cartridges are new, I get a TDS of about 6. I don't bother replacing the cartridges until the tds is about 60 which, takes about 6 months. I remineralize to a kh of 2 and dh of 4. I'm not sure I would see the benefit of di unless I had high copper or something. My water supply doesn't use chloramines and the ro water sits for a day or two so, chlorine wouldn't be an issue anyway. Unless your water has high chloramines or other contaminant, I'm not sure you'd realize a benefit from di.