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​How To Clean A Boat Hull In The Water



When we tell you to imagine cleaning a boat, what do you picture? In all likelihood, a lot of chores. Primary among those chores: bringing the boat out of the water so you can clean and dry it in open air. But what if you didn’t have to retrieve your boat from the water to clean its hull? What if there was an easy way to clean your boat that didn’t affect the marine life around it? Here’s how to clean a boat hull in the water.

What You’ll Need to Clean Underwater

There are a few things you’ll need to clean underwater:

  • Good conditions. Choppy water can make for an unstable marine atmosphere, so make sure that the water is clear, the weather forecasts are stable, and that you can rely on a calm environment when you go underwater.
  • Equipment. Sturdy work gloves, leak-free goggles, and a hookah diving system will help you have everything you need while you work. A hookah diving system is a more affordable alternative to traditional diving gear, which makes it ideal for cleaning use only.
  • Comfort. Why do the work under the water if you’re not very comfortable with that underwater work in the first place? You can always hire an underwater boat cleaner to handle the work for you.
  • Know-how. For example, did you know that you shouldn’t scrub away paint when cleaning underwater? It can release toxic substances into the water, which is exactly the kind of thing you want to avoid as you clean your hull.
  • Safe, marine-grade cleaners. Much of your work will be manual, but if you do need to use cleaners, make sure you use marine-grade cleaners that won’t affect the marine environment.

Making the Most of Your Diving Session

Cleaning your boat hull while it’s still in water means that if your boat won’t move, you’re going to have to be the one to move. The listings above give you an idea of what to do, but here are a few tips for making the most of a hull cleaning session:

  • Clean the waterline with a soft brush. Regular cleaning of the waterline is imperative for a hull that looks clean and streamlined. Using a soft brush to clean the waterline is easy and will be gentle on the underlying paint and gel coat.
  • Keep all boat elements off (lights, radio, etc). Although you’re only cleaning the hull here, you don’t want any surprises while you’re still underwater.
  • Try to work with good lighting. Working on the side of the sun, for example, will give you plenty of good lighting from which to work and evaluate your process on the hull.

Of course, none of these tips work unless you have the right products to make your next dive easier. Browse the boat cleaning and restoration products here at Boat LIFE to ensure you have everything you need. 


Life Industries Corporation
4060 Bridge View Drive
N. Charleston, SC 29405
United States of America

toll free: (800) 382-9706
local: (843) 566-1225
fax: (843) 566-1275


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