Fresh or salt, Bottom paint or not?
I've done this with only a snorkle, don't really need to hassle with the scuba gear (I am certified, too).These days, I use a long handle with a scrub brush on the end and operate from a dry position on the dock. Boat US and West Marine have a variety of handles, brushes, angled cnnectors, etc. that can meet your needs.I like the Shurhold stuff from Boat US, and use the swivel pad and scrubbers they sell (pg 356 in Boat US catalog). If you use the scrubbers, poke some small tie wraps through and attach them firmly to the head, otherwise they come off in the water.Fair winds,Tom