Put a bubble level on the shower floor to verify your floor is in fact level. Due to the changing addition and usage of water and fuel in addition to items coming and going a vessel will seldom be a true level. You can adjust the resting balance of your vessel port and starboard by simply filling the fuel tanks (2) more or less. ie every gallon weighs approx 7lbs. If you need to change the balance point fore or aft try moving heavy items such as tools food water etc until you get the desired results. If you have a fly bridge with wind pushing the vessel off level there is not much you can do to change that.
