[Paddlewise] Hatch leaks [was: subjective evaluation of kayaks]

Evan Dallas wrote:
> 
> Ken wrote (DK's paraphrase):
>
> > On my Eddyline Falcon 16 I devised my own method for sealing the hatches,
> > and they were nearly 100% watertight.

> How did you do this?  I've got an Eddyline Calypso with leaky hatches, where the
> hatchcover is like a piece of from the deck with a gasket glued to the
> underside.  The gasket simply presses against a groove in the deck and more or
> less relies on pressure for a tight seal (I've added compression straps to the
> outside that increase the pressure, but it still leaks (just not quite as
> much)).  It sort of looks like (hopefully my ascii sketch will come though OK):
> 
> _____________
>       |____|  _________
>     \________/
> 
> Did your Falcon use this arrangement?

This is standard for many Eddyline boats.  I have four hatches like this and
they are fine.  Couple things to check:

1. Look for signs that the hatch proper is hitting the hull (wear areas), which
would mean the gasket is not under compression there.  Solution:  carefully
abrade away the high spots -- should not take more than an eighth of an inch of
material (max!).

2. Renew the gasket, which gets compressed over time.  You must get neoprene
for this.  Eddyline should be able to sell you some.  If it still leaks, add
another layer of gasket material on top of the first.

3. Store the hatches _unlatched_ so the gasket does not compress during
storage.  Only keep the hatches latched when in use or in transit on your
vehicle.

BTW, this seal system relies on the hatch retaining a shape that mimics the
hull recess.  Adding extra compression straps may distort the hatch and
actually make the problem worse.  Hull/hatch distortion is the weak point for
this system, and if you thrash in surf or flop yourself onto the deck (during
self rescue, for example), expect some minor leakage ... a cup or so at the
most.

-- 
Dave Kruger
Astoria, OR
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