Regal 2000 ES Owner's Manual page 48

Chapter 1
Typical Carbon Monoxide Label At Helm
Typical Carbon Monoxide Label At Transom
1-22
Blockage of exhaust outlets can cause
carbon monoxide to accumulate in the cabin
and cockpit area even when the hatches,
windows, portholes and doors are open.
Exhaust from another vessel alongside your
boat, while docked or anchored, can emit
poisonous CO gas inside the cabin and
cockpit areas of your boat.
Th e "station wagon eff ect" or back draft ing
can cause CO gas to accumulate inside the
cabin, cockpit or bridge areas when the
boat is under-way, using protective weather
coverings, high bow angle, improper or
heavy loading, slow speeds, or when boat
is at rest.