Ernie, I received my smoke loader on Monday last week. I finally got a chance to add it to my railroad on Friday. The boom operates fine with my Cab 2 and my lcs app. I cannot get the pump to prime even after I discovered your post which suggested using the program switch I only let it run about thirty seconds. Don't know if that is enough or not. I put about 4 ounces of fluid in the tank. Also I noticed a three position switch on the top of the pump. Does its position matter? Thanks
Tom