@brettvet hope your dog is okay. Anyhow, you do need to disassemble your Roomba further and clean everything with 90%+ isopropyl alcohol. Besides cleaning things, it will also displace the water. Since you are dealing with electronics and a battery, try not to use to much water other than on the plastic parts maybe. Anyhow, start with these guides [[Topic:iRobot Roomba 650]] to work on it. After it is cleaned you most likely want to get a new battery and then re-evaluate your Roomba.