The rumors were true! There really was a boat under all that dirt.
The water has been off at my slip since October, so today's project was
to motor over to the guest dock and scrub (for 4 hours) her clean.

I stopped and purchased a bottle of Meguire's "Gold Seal" car wash
soap. ($7.99). I've had it with paying $30 a gallon for so-called boat
soap at Big Box Marine- only be disappointed with the results.

This Meguires stuff is so concentrated that it pours like molasses.
I used half a bottle on my very dirty 36-footer, and the boat hasn't
been so clean in a long time.

If you're looking for a good boat soap, the answer may not be a "boat
soap" at all. :-)