Quote Originally Posted by msmith619 View Post
If anyone needs large quatities of RO water, you can go to most Wallmarts and they have a Culligan water dispenser in the soda/water section of the store. It is tap water that is first run thru a sediment filter, then a carbon filter, then reverse osmosis, then a UV sterilizer. It costs 29 cents per gallon. I bing several 5 gallon drinking water dispensers and get 20 or 30 gallons at a time. When I first set up my 75 gallon tank, I got all 75 gallons there (well probably 55 gallons if you consider the sand and rock displacement) all at one time, so you can get large quantities fast.
Mike

as an fyi I checked this water a few months ago it was at around 35 tds I am sure it is diff. from place to place but thats what I measured it at.