Re: Dissimilar Metals
When I was nineteen I worked for a commercial plumbing company. I remember being taught that galvanic corrosion was a real problem in plumbing systems after about 50 years or so of use. Seems copper and steel could be a problem after about thirty years. Obviously if you are burying pipe in the ground that you want to last a couple of life times, galvanic corrosion should be a major consideration. I will probably not own a boat after that amount of time. Don't sweat it.
I think that galvanic corrosion becomes a real concern in boats that are exposed to an electrolyte, like salt water. Or you moor your boat in a big marina where stray currents from other boats accelerate the galvanic process. In other words, unless you are dragging your fuel filter through salt water marinas, you should be ok for 50 years or so.
