i'm doing stringers and floor in my boat. i want to add a simple ballast system that will load on the fly and drain on the fly. i'll add tanks under the floor while i'm there. i don't want to mess with pumps. i probably want to be able to fill left side vs right side but that's about it. i've searched and couldn't find much about ballast without pumps. can someone point me in the right direction? thanks
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