[rebel-builders] Corrosion pitting on floats
Posted: Sun Feb 19, 2012 5:36 pm
Wayne - there is no circuit present for conduction from the line. Induction could like in a transformer but very unlikely. I would expect something in the water itself - acid???
Garry
Sent on the TELUS Mobility network with BlackBerry
-----Original Message-----
From: "Wayne G. O'Shea" <oifa@irishfield.on.ca>
Date: Wed, 30 Sep 2009 15:00:07
To: Murphy Rebel Builders List<rebel-builders@dcsol.com>
Subject: [rebel-builders] Corrosion pitting on floats
This is my fifth season with the floats on.... and the first time I've seen
this. This year I left my airplane in the water for about 5 weeks tied to
one of my dock ends. I got the same little beige growths on the side skins
below the water line, that you usually see on the sacrifical anodes on your
outboards....and I scrubbed them off and then kept my airplane on the
airlift for the remainder of the summer. With the airplane clean and dry in
the hanger I can put my knife point in these dozens of little pit holes and
I bet they're half the skin thickness deep. Has anybody else had this happen
to you???
My first thought is where I had my airplane tied to the dock end in about 3
feet of water there is a rusty casing'd, 2400 volt, submersible cable
running under the airplane and wonder if the leakage off this hydro line
caused the plating effect.
Wayne
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Garry
Sent on the TELUS Mobility network with BlackBerry
-----Original Message-----
From: "Wayne G. O'Shea" <oifa@irishfield.on.ca>
Date: Wed, 30 Sep 2009 15:00:07
To: Murphy Rebel Builders List<rebel-builders@dcsol.com>
Subject: [rebel-builders] Corrosion pitting on floats
This is my fifth season with the floats on.... and the first time I've seen
this. This year I left my airplane in the water for about 5 weeks tied to
one of my dock ends. I got the same little beige growths on the side skins
below the water line, that you usually see on the sacrifical anodes on your
outboards....and I scrubbed them off and then kept my airplane on the
airlift for the remainder of the summer. With the airplane clean and dry in
the hanger I can put my knife point in these dozens of little pit holes and
I bet they're half the skin thickness deep. Has anybody else had this happen
to you???
My first thought is where I had my airplane tied to the dock end in about 3
feet of water there is a rusty casing'd, 2400 volt, submersible cable
running under the airplane and wonder if the leakage off this hydro line
caused the plating effect.
Wayne
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