Sailboat 11m Eric Beckers (very thick polyester hull 1.8 mm) – video

https://vimeo.com/76322687

This video was made after the first year with Harsonic. see at references the testimonial after 3 years !!

Mooring in Belgium’s harbor DeSpaanjerd for more than 1 year in fresh water , and whitout navigating for the last 7 months 

the boat was lifted and the hull was brown due to dead algae , trying to get them off seems very easy without any pressure to bear.