My culligan man said $110 a month for rental of the 2 tank system (or I can buy them around $1000-$1500) $140 to regenerate, and get this tds is around 500 here(so ive been told)! Is that even possible?? so only 1400 gallons per charge, Ive had the 2 dealerships Ive asked say i can start anytime for around $2 per car(they both run them to car wash when they get "too dirty") but how can I possible make decent money @10 cent a gallon+ rent + all other expenses?? I know DI/RO is the best way to go, but what about hand drying( chamois) any other ideas?? I wish I had Bryan's di supplier and ANYONE elses water!!