Bubbles- if it's a colocasia there's no need for drainage at all! Might be better off plugging that hole back up, once up to size these guys can drain well over a gallon a day in hot conditions!
It's been nothing but rain and overcast here, the gulf has just been pukin this monster system on the east, it's pretty spectacular, but if we don't get a touch if sun but tmrw I fear things will be hurtin bad here, I've lost several treasured c&s to the wet! It's sad, we need some balance, half the country is parched, other half is floating away...