this prob sounds dumb but ive never heard of them...thanks for clarifying that for me...ive got 15 yrs to learn as much as i can...

Whats a set of zincs and what happened to them

A zinc is placed on or near metal parts on the boat to keep them from corroding away. The Zinc goes away instead. You replace it as it disappears. If theres stray electric current from the boat to the water, the zinc disappears faster