I have a 1994 Bass Tracker Nitro 180TF and I need to know what the 4 holes do in the rear on my transom. there are 3 drains that are at the lowest point of my boat and not sure what they are for and what needs to be plugged while in the water. and there is 1 other drain above the 3 drains that is all by itself. if you could please answer me and let me know which ones need to be plugged up while in the water that would be great. also what each drain does. I cant find the information ANYWHERE! the top drain by itself has no threads, the bottle left has threads on the outside, the middle drain has threads on the inside, and the right drain doesn't have any threads. it seems as if the middle hole on the bottom is the only hole that does not have a tube connected to it. I have a bilge pump, and two livewells also.
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