Its been so hot I've been wondering and about this water thing too. I did two things,
1) I filled an entrance feeder with water only. I wanted to placed it in the entrance, but there are so many bees at the entrance all the time I just left it on top of the hive.
2) I put a zip lock bag of "water only" on the top frame (two baggies on top frames, one sugar water, one water only.. I don't know that my bees have enought nectar either so I began feeding again.)
I hope the bees appreciate it.
Bee1 --