re corrosion

I made a post a couple of years ago on this same subject. I really don't think it makes much difference if the valve is aluminum or brass. I think it is the crappy srping that Crosman is putting the valves. When the spring starts to rust, it flakes off little chunks of hard rust particles and gets on the check valve and it will not seal anymore. If that valve spring was stainless steel or somehow anitrust treated, I think the problem would be solved. It still needs to be oiled genoursly though. Remember the old Sheridans have bronze valve springs and lasted 30-40 years if well taken care of.

Bob in WV

Never get in a hurry, it only slows you down.