Water fall/substrate problem

I am not sure what happened, but last night at some point, some how all the water ran out of Kitty's water fall and into the cage substrate, a mix of coconut husk and reptibark. most of the substrate on the top was still dry as it all was absorbed from the bottom. I mixed it up and now all of it is moist, not sopping, but moist. I noticed it when I woke up this morning and didn't have time to change out the substrate before I left for work. Will he be ok today? Do I even have to change out the substrate?

I would swap it out and let the stuff in there now dry out before reusing (assuming it is otherwise clean). Snakes and flowing water can be a very wet thing - I used to use the ReptiFlo250 in a couple of the tanks to get the humidity up - and on a regualr basis I'd wind up with water all OVER the place. It looked nice when it worked but was too much of a PITA so I finally ditched it in favor of a much larger water bowl and contac paper for the lid (and THAT solution eventualy gave way to tupperware).

Plastic is a wonderful thing, isn't it? :)

I was planning on drying it out, but will he be okay for the day? I can't leave work and there is no one else to change it. If he will notbe okay, I may be able to negotiate a long lunch, at the most I usually get an hour and it takes almost 30 min to get to my house and 30 back so that would take my whole lunch.

As long as it isn't sopping wet or no standing water (i.e. wetbelly) I think you'll be ok to make it through your workday.

oh, good