baldpaul
Veteran Member
I am looking for opinions. I have twin Perkins 225ti engines. I don't use pencil zinc's in the exchanger. A boat yard I used told me they don't recommend them as they have actually seen more problems caused by zincs plugging the tubes when the zinc deteriorates and begins breaking apart. They said as long as my engines were properly bonded to the main system, which it is, then zincs were not necessary. This runs contrary to what is commonly suggested. Does anyone have any comments on this?