ahahha i have the same water bowl as you (the kidney bean shaped navy blue ceramic ones) petco rite? i was using it for my bp but she kept upturning it and getting her tub SOAKED so i switched to a bigger, heavier water dish that she could'nt upturn
btw if ur keeping snakes in there, secure it. my friend uses binder clips but i just soldered holes into it and cable tied the lid to the tub.