Bergan's Auto Wata is an outdoor self-filling water dish that will not overflow so your pet will always have access to water.
for all pets up to a large dog, it is wall or floor mountable (hardware
screws are not included) and can be attached to a water source via a
water hose (please use a Potable Water Rated or RV hose since regular
garden hoses that are exposed to the sun and elements can leach toxic
materials into the water and is not safe for your pet).
mounted, it's the good solution for dogs that water dig and knock over
their water bowls. And, cleaning is pretty easy. Just turn off the
water source. Slide the Auto Wata off the mounting screws and wipe out
any debris that have settled at the bottom of the bowl.
We use one of these for our dogs and LOVE it!