I laid tile in the bathroom yesterday. About 18 hours later, it felt pretty solid, so I took the opportunity to do some minor plumbing work under the sink (replaced the water shutoff valves). I had some trouble installing the valves, and a fair amount of water dripped on the floor, but it's done now. I haven't grouted yet. In that area, the thinset in the grooves is now pretty much soaked. Should I be concerned about the strength of the mortar?
Also - can I grout now or should I wait until the area is thoroughly dried? I'm unsure because I've read that the drying of thinset is a exothermic reaction, rather than evaporation.