Example of sea growth on the shaft:

Underwater hull cleaning can lower operation costs and extend the life of hull paint.  Cleaning helps to activate the biocides in paint which lessen algae and sea growth.  With our hull cleaning maintenance program we can keep your yacht in top performance. 
 That's why we:

·         Clean exterior thru-hulls and running gear (propellers, rudders, shafts, struts, trimtabs, outdrives, etc.)

·         Inspect for blisters on fiberglass hulls.

·         Inspect for damage.

·         Inspect paint condition.

The same shaft after cleaning:


Eco friendly and responsible: At Double J Diving we are an eco company and  employ responsible practices; we do not clean ablative/soft paints in water and follow area marina rules.

Details...

We use white 3M Scotchbrite pads, the least abrasive, for hull cleaning on most paints; red pads for cleaning running gear; and the most aggressive, black pads, for cleaning the zinc contact surface. Our cleaning ensures a full inspection of paint conditions with alerts for upcoming haul out needs for new paint.

Race Wipes:  For wiping race bottoms we use soft sponges. We always clean with a streamlined stroke to help water molecules flow properly to lessen drag. Ask about our "Race Package Service."

Contract Hull Cleanings 

Ask about our regular automatic scheduled contract hull cleanings. Send us an email! 

 

 

"I have an Ocean Alexander 42 which I have kept at Elliott Bay Marina since summer 2007. I asked around for a diving service to periodically replace zincs and generally tend to care of the bottom. I learned that Double J had an excellent reputation and I contracted with them to handle my needs. They have been with me ever since. They have always acted with the utmost honesty and professionalism. They have me on a specific schedule based on the wear they found and my usage patterns. They have also kept up with technology, and now furnish underwater photographs of the hull and running gear before and after each service. I am sure I will continue to use Double J Diving as long as I keep a boat in the water in the Seattle area."
Mike Hartung, Mercer Island