Been there too, if your doing it in the kitchen make sure you put the bucket your filling in the sink so if it overflows it goes down the drain.

On the topic of drinking RODI water, I feel it's a personal decision just like anything else. If your tap water sux and you have RODI why not drink it? From what I've read there is a risk of bacteria collecting in your DI but if you use it regularly I think it further reduces the chances. If you follow conspiracy theory rumors at all you probably already drink ro water to avoid the brain washing chemicals and junk lol. I personally don't drink my rodi cause it's in a bin downstairs and I don't have a water cooler for easy access other wise I would drink it. It all boils down to personal choice, I smoke and drink that's my choice as is bathing and mowing my lawn. If you feel comfortable drinking it then do it, if not then don't, or tap off before the DI stages and drink that water.