I am new to boating and recently purchased the above boat, there is a fill in the back of the boat on the port side for water, is this fill so the on board sink is operational or is it there for another reason? Thanks
That would be your water fill for your fresh water tank. If you add water in there, use a 1/4 teaspoon of chlorine bleach (NOT the detergent type bleach) per gallon of water to keep the tank fresh and prevent things from growing in there. If you are in an area that has cold winters, you need to drain out all the water in the tank and run a gallon or two of non-toxic anti-freeze through the entire system before storing the boat.