I hope this answer will be useful to the person with the Seaworthy
My wife has a 20-year old Water Wolf inflatable. It is basically two
inflatable pontoons cleverly lashed together. Each has an inflator valve. It
appeared to be leaking around the valve seats. I bought two short
Halkey-Roberts valves from NWR to replace the old valves in the Water Wolf.
In the Water Wolf, the valves are installed in the bladder that is inside of
the thick, tough outer fabric of the pontoon. This requires removing the old
two-part valve, carefully installing the inside-the-bladder part of the new
valve, lining up the valve opening in the bladder with that in the outer
shell and then tightening the two parts of the valve to seal valve and
The Water Wolf has a zipped and pretty well hidden pocket that when opened
gives access to the bladder at the location of the valve. This greatly
facilitated the valve replacement. I am guessing that the Seaworthy will
have a similar arrangement.
I recommend buying the valves and trying to make the repair. Also, buy the
valve wrench to use while loosening the old valves and tightening the new.
It is not absolutely necessary but it certainly makes those operations a lot
easier to accomplish.
NWR was great. They promptly filled my order and delivered the valves and
wrench ahead of promised date. All-in-all, the new valves saved our summer
on the river in Montana. We are on our second 20 years with the Water Wolf!
Good luck with the repair.
Answered on 10/7/2012
Harry from Montana