a leak, have it checked out with a professional. Leaking fuel into your bilge is an explosion waiting to happen. Carbon Monoxide-The Invisible Killer Boaters aboard vessels with enclosed cabins or other similar accommodation spaces need to be aware of the potential danger from carbon monoxide gas. Carbon Monoxide (CO), a colorless and odorless by-product of all internal combustion engines, can quickly collect within, along side or behind a boat. Symptoms of CO poisoning include headache, nausea and dizziness and may lead to death. This dangerous situation can occur aboard enclosed vessels while underway or at the dock when engine exhaust enters the vessel from outside, usually over the stern. Most of us might recognize this as the " station wagon " or " backdraft " effect. To reduce or eliminate this effect it's best to open a hatch forward (while underway) to allow fresh air to move freely through the cabin. CO gas from on board generators can also collect about a moored vessel. Avoid teak surfing, dragging and water skiing within 20 feet of your vessel as it may be fatal. Be certain to check all exhaust lines from any internal combustion engine to ensure that they are not leaking into the boat. Always ensure a flow of fresh air into your boat. Also be aware that exhaust from other vessels which may be moored close to you at an overnight marina can also surround your boat. Your best preventative measure is to install a carbon monoxide detector in the living and sleeping spaces aboard your vessel and be certain that it is functioning properly before turning in. Propellers - Hidden Danger A spinning propeller can cause devastating injuries in less than a second to a person in the water. Propeller accidents can be prevented by using an Emergency Engine Cut-off Switch attached from the ignition to the operator. If the operator is thrown from the boat, the lanyard disconnects and the engine stops immediately. This may prevent the boat from running over the operator and any passengers in the water. Other safety practices include having all passengers properly seated while underway, check for swimmers around the boat before 47