These are attached to narrowboat hulls to prevent rusting.

Narrowboat anodes. This video shows you the hull of a Springer narrowboat what an anode is what pitting looks like and what a blacked hull looks like. Blacking costs are calculated by the length of your canal boat. Narrowboat Anodes Direct.

So it is important to check the anodes as their purpose is to prevent electolytic corrosion of the steel plate and the bronze stern gear. The anode then becomes anodic and the steel hull cathodic - which means it wont rust so quickly. This metal is known as the anode.

Zinc anodes are essentially a metal attachment to the boats underwater part often on a propeller shaft or the propeller. By attaching them to the underside of a boat they are able to provide protection to both the sides and bottom in a 4-5 foot radius enabling the maximum area to be covered by one anode. What sort of anode do I need for a canal boat.

Current will always flow from the highest voltage to the lower voltages and the anode highest voltage will corrode and reduce in size over time disappearing completely. Its sole purpose is to degrade and rust away over time. Zinc anodes are used exclusively in salt water.

Zinc anodes are used exclusively in salt water. Basically a zinc anode is designed to be the thing on your boat that corrodes instead of any steel or other metal components of your boat like the engine and propeller. You would pay around 150 a pair fitted for these.

Aluminium anodes are used for boats in brackish water. The price for this is included in our anode fitting charges. By definition an anode is an ingot of sacrificial metal attached to the underwater hull of a narrowboat or canal boat which corrodes due to electrolysis more readily than the hull and propeller.