Boat Forum / Building / February 2007

I am going to buy a sounder for use in my aquaculture operation. I
need it to be as accurate as possible in determining if my mussel
socks are touching the bottom or are 1' off the bottom. The water is
only 20 feet deep and it is a mud bottom.  Some people are using SiTex

I have a Traveler toilet that sits right on top of a 90 gallon holding
tank. The toilet dumps directly with gravity and works great. The tank
can be emptied with a standard pump-out fitting or I have an electric
pump that I can use to empty the tank directly overboard which of

I started to write this to a sailnet list member who'd recommended
them,
citing, in particular, and repetitively, during our conversation,
their

Can anyone tell me the best way to repair a broken foot housing by the
impellor?  The boat runs and it doesn't seem to affect the
performance, but I'm afraid it will get worse.  Also don't want to
have to buy a new one because of the expense.

Does anyone know what the mimimum slope of this drain can be that will not
cause clogging? I really do not want to use a second grey water tank in the
forward end which will cause loss of space and another through hull fitting.
It is preferable to use one large tank for the whole ...

I rolled out a 6' x 4' panel with waxed gelcoat.  It failed to harden
in spots.
The gelcoat went on a plywood panel which had been prepared with mat
and 8 oz. resin.  The resin hardened and was leveled through sanding

 Hi, my name is Nicole and I could really use some help!  My kitchen sink is
clogged (it's a double) (and I'm also not sure what is plugging it!).  One
side is an open mouth with a garbage disposal, and the other has a built in
plug in it (that I do not think comes out) with just a ...

I bought West System mini pump at West Marine last spring.  Now ??
Can't get them to pump.
Any thoughts?  Anyone else have problems with these overpriced mini pumps

ok, Ive heard this idea brought up before and seen it poo poo'd, but can it
work to some extent?
Ive got a 14' cat that i store next to the beach in sydney harbour and i
like to get out for a sail when i can.  Unlike most cats this size, it has

I found some photos of a particular type of OPEN lifeboats, which are
probably no longer being build. I was wondering if anyone out there may
be able to help me to identify the manufacturer of this type of
lifeboat?

cross posted to rec.boats.electronics
hi all,
im hoping to install a trolling motor on a 14 foot beach cat, for those
interested, a local australian design the 'caper cat'.  There is plenty of

Now that's a real thought provoking question!
My initial and un-scientific guess it that you would get something less than
the paper calculations might show because you have the added physical drag
from the second motor that MIGHT be greater than that from a single motor.

I have to laugh that Geoff beat me to the internet with the pictures.
I've crossposted this to rbb as well, as there  may be those there who
have some construction suggestions.
Today I'll take copious pictures of the real damage - inside, where

Ive been browsing the US patent database and looking at pictures, thinking
about building a windvane for a thunderbird 26.  partly because of the cost,
and partly just for something to do.  building it shouldnt be too hard for
me, i have plenty of time, access to materials and a ...

I am looking for very small (2-3") diameter plastic deck plates to put
on the sides of my miniCup sailboats to allow the side comparetments
to be drained if they somehow fill with water.  I want something like
a deck plate that will be very low rise above the deck.  (I used 4"