My Cajun has front and rear aerated livewells and each has a bottom drain and high mounted overflow. The only thru hull drains are the main hull drain, a small livewell drain located next to the main drain and the bilge above water line drain. There is no other above water line drain. Where does the overflow from the livewells drain to? I have had numerous other boats and all had above waterline thru the hull overflow drains for the livewells. The aerator intake is adjacent to the main hull drain and small livewell drain (which has a drain plug attached). All the manuals I have viewed show thru hull overflows above waterline.