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.


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! 



"Jorge was completely right in both his observation as to the damage and his recommendation not to run her. I had the boat towed to Seaview in Shilshole, with the shaft locked so it couldn't turn. She did in fact have both a bent strut and a bent shaft. Hate to think of what additional damage I might have caused if I had tried to run her to Shilshole, or even to the travelift at Edmonds. I would and will recommend you folks without reservation to anyone needing a diver. Thanks."
Bill Taylor