Hey Francois,
I didn't explain myself. I can avoid the Tyvek suit and mask and respirator.
I am wet sanding the hull wearing a swimsuit and no shirt, no respirator. I put a brown 3M scrubbing pad on a doodlebug on a pole and can work without the stuff dripping on me. It works pretty well. Occasionally I have to wet sand an area by hand using 80 grit wet sandpaper, and keep the hose ready and wash off my hand and arm. I used this method before and though the old paint gets on you, the advantage is no paint dust is in the air, and nothing gets on the boats near me. I can easily shower myself at any time, so I stay pretty cool. And when I quit, I'm not covered in paint dust and my nose isn't full of dust either. I'd rather dry sand the bottom in winter, but my plans got changed and I thought I had a buyer, then the yards all got busy and here I am working around the weather. Oh well.
I wish you lived closer. Would love to learn your tips on bottom burnishing to get your hullspeeds.
Chuck