Gooseberry flowers

I was cleaning the toilet in the laundry. It was designed that if I was dirty/wet from being outside, I could just walk in there and not track through the house. In action, I tend to walk through the house, so that toilet isn't used very often. Was surprised to find that it barely flushed. It's a pressure-assisted type and has dire warnings on the top of the tank not to mess w/ it. Put a call into my plumber. He hadn't worked w/ this type much before but since I'd kept the paperwork that came w/ it he was able to see an adjustment screw. A quarter turn and he had the toilet flushing again. In an arena of experience that you aren't familiar w/, what an expert does seems like magic. Made me wonder if I do any "magic" - will have to think about it.