Newtrawlerowner
Senior Member
- Joined
- Nov 16, 2019
- Messages
- 327
- Location
- USA
- Vessel Name
- PartnerShip II
- Vessel Make
- 2003 Mainship 400
I have a 2003 MS 400 in salt water. It seems my zincs don't last very long and wanted to ask what others have experienced. I use aluminum shaft and hull zincs. I just replaced the galvanic isolator with a Pro-Safe 60 amp unit. I also tested this unit several times and it is working. I've tested the bonding system, found some poor connections and corroded wiring and repaired. I also found my shore power cord had some internal corrosion allowing leakage from the ground (green) to power. Not enough to trip the shore power breaker. I've tested the shore power pedestal and no issues there. My 1st question is how often do you replace underwater zincs?
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