I am setting up a custom ballast with two ballast Jabsco rev. pumps. Just wondering if a 1 1/2" thru hull will be enough to supply two 1" lines to the bags. I dont want to use the water intake hose because of the factory warranty. All the hoses are ran and the pumps are installed and wired, but I'm just not sure about the size if the thru hull. There is a 3/4" drain plug a few inches away from where I planned on putting the new thru hull. Would that be big enough?
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