The only dripping is caused by playing. So, the big chickens have dry litter, the babies have a bit of dampness from flinging drops around and their four-chick "let's see who can peck this thing the most in 20 seconds...GO!) water parties.
I haven't started adults but the chicks took to it quickly. The hardest part is trusting that once you have seen them using the nipples, it's really OK to remove the fount option. If you don't, they will continue to use it and you may begin to think that they don't like the nipples or aren't getting enough water. I can assure you that properly installed, they can down water like a college kid with a beer bong.