It seems like at least one respondent is concerned about putting any air
pressure into your Watertight/or/Cracked drain tube. How's about the
following then:

Get some clear plastic tubing ( Home Depot/Lowes, etc ) sized to fit the
openings of the drain tube. Cut the tubing into two sections. Tightly force
about four feet onto the aft-end opening of the tube. Tape the cut-off end
above the gunwale ("gunnel"). Then, force the other piece into the forward
end of the tube, and tape it's open end above the gunwale height in the
cabin area.

Pour water into one end until you see water rise in the opposite end of the
clear tubing. ( You have now made a water level, with your drain tube as the
middle section). Mark and watch the water level for a few hours.

If the water level stays intact... you have a watertight drain tube. If the
water level drops...it is going into the hull of the boat and you have a
problem, created by the boat builder or by the removal of the insulation.

regards,
RichG


"WaIIy" wrote in message
...
On Thu, 11 Dec 2003 02:35:22 GMT, "Ernie"
wrote:

To Clams Canino, RG, Gene Kearns and Lawrence James, thanks for
suggestions.
The scope seems the way to go though who would have ten to fifteen foot
scope to view the channel? Does a plumber really one of those?

It's unlikely a plumber would have a scope that small to go that far.

Maybe a proctologist. Mine felt like it went up 50 feet or so.