[walt123]

Wear a wet suit or heavy clothing if you are in warm water, have someone stand by on dock/deck for safety and you would be wise to have a safety line to the dock/boat. Wear heavy gloves..barnacles can be very sharp and have a line from your wrist to the scrapper/scrubber you are using. It is extremely easly to bump head/body so make sure to know where you are in relation to keel/shaft/prop and dock. All this is commom sense but a diving emergency at 5 feet is still a serious problem especially if you are wedged where you shouldn''t be. One last point if you are cleaning the bottom in a marina check with them to make sure that it is allowed and check with the authorties if it is legal. As long as 50% of the Zinc is present leave it for later replacement, you can do it in the water later and why waste money by not getting all you can out of the old one.