I seem to be burning through zincs on my prop shaft, replace them at least twice or more in a season. I posted a photo previously in the group of a shaft brush (https://drive.google.com/drive/u/1/my-drive) someone helped me figure out what it was. Currently the wire on it leads nowhere which got my started on this goose chase, researching shaft brush’s and bonding systems.
Anyway my question is should I be connecting the wire coming from this shaft brush to a DC ground? Or will that simply connect the stray current from the dissimilar metals (bronze prop, steel shaft) outside of the boat, to the engine “earth” and start to corrode the engine? I’ve got AC shore power but had a Galvanic Isolator installed, so I’m not sure where the stray current is coming from or what is eating through these zincs so quickly. If anyone has any ideas or has had a similar experience with burning through zincs or bonding systems, and found a solution (other than changing zincs more frequently) please let me know! Chris Hobson S/V Going 1980 C&C MKI Hull 615 Vancouver BC _______________________________________________ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray
