[Alberg30] Thru-hulls

[Mpete53 at aol.com]

You can screw the ball cocks on to the straight threaded through hull 
fittings. Or you can use the flanged ball cocks by trimming the through hull fitting 
length down so the screw into the seacock and draw up tight against the hull.

One note when I replaced the gate valves I found that some of the through 
hull fittings were made in two pieces. One piece was the threaded pile and the 
second was a washer. These two pieces were fitted together via a machined groove 
in the pipe where the washer was fitted then the pipe was expander to capture 
the washer. One of these through hull fell apart when I tried to remove it to 
rebed it. 

My advice is to get rid of any through hulls that don't appear to be one 
solid piece.

Mark
 +---------------------------------------------------------------+
 |                This Old Boat by Don Casey                     |
 | http://www.amazon.com/exec/obidos/ASIN/0071579931/alberg30-20 |
 +---------------------------------------------------------------+

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