Re: Alpha 1 ear muff alternative
your in salt water, just that fact alone has corrosion starting. Even constantly keeping the zinc's clean may not be enough to keep corrosion at bay. a flush kit or muffs can only prolong the inevitable. with the mercruiser, depending on which system (full or half system) you have, you still will have corrosion. with a half system you still need to flush the exhaust manifolds which is what the flush kit does. It also pulses the water to help break up any deposits, which simply running on muffs doesnt do.
All I can tell you is that I installed one, it worked for my needs which was flushing after I pulled the boat out of water. I also installed one on a friends boat that spent its life moored in salt water, and I have talked with the owner of the company down at the miami boat show when he would stop by our booth.
your outdrive is on the cold side of the system, so you shouldnt have salt coming out of suspension like it does on the hot side of the system. above 130F, the salt tends to start to build up so buildup in your drive will be minimal. your also on a lift, so you dont have barnacle buildup.
