Port Townsend Wooden Boat Festival 2024

Talking points for underwater services

• There is a great amount of work b4 going in water
• When to have routine underwater services on your vessel depends on her type, size & frequency of use
• What is inspected in an underwater service
• Size of anode may be wrong with reactivation
• Advantages of a clean propeller
• Marine growth is different at different marinas, slips, fingers.
• What can it mean if your prop is clean before being cleaned.
• Disadvantages of cleaning a bottom painted boat
• Following EPA rules and regulations in the water
• Scheduling accordingly with planned trips
• Spinning your vessel for bottom paint’s sake
• What to look for regarding intakes, transducers, thru hulls
• What it feels like to touch an intake with a grounding issue
• Solid growth is good.
• Swim step brackets anodes need to be in the water.




Propeller Protective Products


Propeller protective items Divers need to know what NOT to touch.
*PropSpeed / LightSpeed / FoulFree (transducers) / StripSpeed (removing old *PropSpeed)
*PropOne
*PropGlide


PETIT SPRAY

Items that often get missed when bottom job

*Bottom of keel

*Inside thru hulls

*Top of rudder

*Inside thrusters



ALUMINUM ANODES
• Aluminum anodes are often like painting anodes
• Remove crust to reactivate the anode
• Use Aluminum anodes in brackish water. Gondola in New River.

When mixing aluminum & Zinc in saltwater galvanic corrosion CAN occur.

Because of the differenced in their electrical potentials.