STRAY CURRENT

A common problem, especially for boats moored on a marina berth, is stray current.

This is electricity ‘leaking’ into the surrounding water, which may not even originate from your boat. Left unchecked this can cause rapid corrosion of any metal components, with pitted holes especially common in aluminium hulls.

Douglas says specialist equipment can measure the extent of the problem at your marina and an appropriate solution can be implemented. Using the correct anodes is, of course, critical, while copper earthing plates fitted to the hull is another way of protecting your boat.