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Old 03-09-2018, 08:30 AM   #11
diver dave
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City: Palm Coast, FL
Vessel Name: Coquina
Vessel Model: Lagoon 380
Join Date: Jan 2017
Posts: 2,551
I had this happen, although only to a leak, and not a blowout.

Turns out lead/tin solder is attacked by chloride from seawater.

Sandia Labs figured this out a number of years ago.

This is not a cleaning issue, and maybe even not a lack of zinc issue.
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