Here's the short version. I'm running a Air, Water and Ice Typhoon unit ... 5 stages. Sediment, Carbon block 5 micro, carbon block 1 micron, DUAL 75 GPD membranes into a 10" DI canister. I'm also using a booster pump as my well lacks sufficient pressure to make water correctly. I have a well. My TDS out of the tap is 700+ on a good day. I'm currently 50ish before DI and using DI like CRAZY. What can I do to resolve my DI usage. I can make 50 gallons of 0 TDS water before a 10" canister is exhausted. I rent my home so a whole house water softener is out of the question. Any thoughts are appreciated.