i had considered reverse osmosis (R.O. water). but draining would haVE been an issue and i let it go. i do have well water where my base ppm is just over 400. i had been using a fairly cheap dehumidifier. a frigidaire. model# LAD304NUL. this worked ok. capacity was 30 pints/day. we had a rainy week recently and my basement was damp. i upgraded my dehumidifier to a G E MODEL# 70LWL 1 CAPACITY 72 pints/ day.. note; this is producing enough R.O. water to fill all my watering needs. i mounted the new dehumidifier on the outside wall. 4 feet o.f.f.. i ran an 12 inch long garden hose thru the outside wall. a 3/4 inch hole fits hose perfectly. i have a 5 gallon bucket located outside, directly under the hose and am dumping the bucket twice daily into my 100 gal. water (feed) tank. i wish i had done this long ago.. the $200. i spent on the better dehumidifier was so worth it!!