Dog jumped in the pool while we were on vacation and the waterproof unit got water in it. I wasn't thinking about the warranty and opened it up to try and dry it out. I probably just voided my warranty. Anyone have any problems with their e-collars getting ruined by water. Unfortunately I didn't realize it was not working till the next day so the pool water had caused oxidation of the internal components. We'll see what the company says. My dog has gotten to the point where he is great off leash but if likes to pull when on the leash and other dogs come around. I got a prong collar which is effective until I get a replacement or buy a new unit. very upset right now.