"Only open the
deck fill plate with which you are actively working and no other"
For example, never ever, open
fuel and
water fill plates at the same time. I reminded myself of this little lesson yesterday.
Water fill was open because the rain catchment was installed and I went to add some
diesel from a jerry jug via the
deck plate next to it...spout came off the jerry jug spilling
diesel on the deck...some of which slopped into the water tank...guess what I now get to spend a day doing! (...what do you do all day?)
Corollary: deck fill plates of different types (water vs fuel) should never be located close to each other. I've seen boats with them all lined up in a neat little row...this is an
accident waiting to happen.