A self cleaning birdbath with a bowl (10) which is shaped for easy cleaning
and fixed to a support pole (14) that has a water supply pipe (13)
inside it, connected to a gear driven lawn sprinkler (12) with a converter
nozzle (11), that will produce a cleaning water jet (15) aimed downward
into the bowl (10) which quickly empties the bowl (10) then the cleaning
water jet (15) strikes the water holding surface of the bowl (10)
directly and pressure washes it, the entire water holding surface of the bowl (10)
is cleaned as the gear driven lawn sprinkler (12) rotates a full 360 degrees
for as long as is needed for satisfactory cleaning. When the cleaning is done the
water pressure is reduced so the water coming from the converter nozzle (11)
will not have enough inertia to go over the rim, the bowl (10) will refill
until the water is turned off.