Planning to install a Lakos Sandmaster. They have two models: one carbon steel and one stainless. According to Lakos, the wetted interior of the carbon steel Sandmaster is bare with no galvanization or other coating. I'm curious how long it will last before it starts pinholing. The price difference between the two is $145: significant, but not outlandish. I'm wondering if it's better to go with stainless and never have to worry about it in the future.