PassageMaker - January/February 201

LETTERS TO THE
I suspect that whoever was guiding
you intended to convey that the riser
should be in the dry section of the
exhaust system, before the water is
injected. Your boat also may require a
wet riser to prevent wave action from
forcing water into the exhaust. Note
that galvanized pipe should not be
used for exhaust systems, dry or wet,
per ABYC guidelines. Unless your
exhaust system is specifically designed
to exit below the waterline, this aspect
of your installation likely will require
some reengineering. (Most systems
aren’t designed this way, and those
that are include a relief port to reduce
back pressure.) Don’t take any
chances; follow your engine
manufacturer’s exhaust system
requirements, and make sure the
materials used meet ABYC
guidelines.—Steve D’Antonio

MORE ‘MYSTERY BOAT’
SLEUTHING

Our obliging readers are still writing in about the “mystery boat” that we asked for help identifying in our October issue (shown above). Chris Bergey of South Freeport, Maine, sent a photo of a Ronald Rich design from Southwest Harbor, Maine, that looks remarkably like the boat in question. Several knowledgeable readers suggested the mystery boat is a Jarvis Newman 30 or 32. Other guesses included a Blue Seas 31, a Bruno Stillman 42, and an Egg Harbor.