For just a few more bucks, you can add an auto shutoff valve. Then you can add a pressure tank and faucet for drinking. A real cheap way is to use something like an opaque new garbage can with a check valve and float valve. If you look at the components like fittings, tubing, filter cartridges etc. you can add to this basic system and create your own Frankenstein "water works." For organic soil, you might consider a calcite "filter" to add back alkalinity. The following is a link to a video about home R.O. systems. They are talking about reef systems but the info is beneficial.