does it drip when the fogger is switched off?

if not, the solution would be to have it on a timer so that it is active for maybe 30 minutes every 3 hours.

these ultrasonic things only know "on" and "off" with nothing inbetween, just like the magnetron in a microwave oven. (set a 1000 watt microwave to 500 watts, and you can hear the magnetron switching on and off and on and off, strictly speaking it cannot do 500 watts, so it switches on and off to average out at 500 watts). if the setup is right and it doesnt leak when switched off, all you can do is to use a timer.

but then, isnt that chameleon stuff? drippers and foggers are usually an issue when dealing with arboreal reptiles that need water, but will NEVER drink stale water and only lick water from leaves. like most chameleons and some geckos. BPs will drink out of a water bowl.