I've only been inside it once when it was dry - but in order to actually reach the center bottom with my hands, I gotta get a snorkel, goggles and up on the 3rd step of a 6' ladder and lean over into it and actually "dip" my head&shoulders into the water a bit. It's funny as hell and next time I do it, I'll get somebody to take a picture. It makes a heck of a mess though, as when I come out, water drips everywhere, so first I gotta lay beach towles all over the floor and tape one up on the side of the tank I'm working on to keep water from running down into the stand. Luckily I've only had to do this twice so far.