Hull Corrosion? STOP it in 30 Seconds!
If your boat's plugged in to an electric hook-up, to protect the hull from corrosion, you really should consider fitting a Galvanic Isolator.
Lots of narrowboat hull corrosion is caused by Galvanic Currents, which can shorten the life of your anodes - and hull - dramatically!
The simplest solution is to plug in one of our Galvanic Isolators. They're 100% GUARANTEED to stop Galvanic Currents from the shore supply rotting your boat's hull (not to mention your anodes & prop).
You don't need an electrician (or even a screwdriver)... just plug it in, and you're protected. You'll see how well it works when your boat next comes out for blacking. Expect FAR less pitting, anodes lasting longer, and (in most cases) hull coating in better condition.