Can the system be installed while the boat is in the water?

Yes. Transducers are fitted on the inside of the hull. If your boat is already fouled, the system will start to destroy the algae and the growth will die. Moving the boat through the water will help to wash off the dead growth and although the barnacles will also be destroyed, their shell will not be removed so easily. Therefore for best results, we recommend the hull is scrubbed and cleaned off.