How do you know when your zincs need to be replaced. It may be a dumb question but never had a boat before that had them on it.
thanks for your help
How do you know when your zincs need to be replaced. It may be a dumb question but never had a boat before that had them on it.
thanks for your help
When they about 1/2 dissolved.
I replaced mine when I realized the old one had fallen off.