🛥️ Beginner hull 👁 4 views

Zinc Anodes Replacement

🛠 Tools & Materials Needed

Correct zincs for your boat (shaft rudder hull) socket set wrench wire brush anti-seize compound zinc testing meter (optional)

1

Inspect existing zincs during haulout or while diving; replace when 50% consumed.
2

Wire brush the mounting surface to bare metal for good electrical contact.
3

Remove old zinc anode mounting bolts; apply anti-seize to new bolts.
4

Install new zinc anode ensuring metal-to-metal contact with the substrate.
5

Check shaft zinc: remove set screws, slide off old zinc, clean shaft, install new zinc.
6

Check rudder zinc and replace using same process.
7

Inspect hull zincs and replace any that are more than half depleted.
8

For boats in fresh water use magnesium anodes; in salt water use zinc; in mixed use aluminum.
9

Check zinc bonding wire connections: they must be clean and tight.
10

Record installation date; typically inspect every 6-12 months depending on conditions.