This may be a dumb question, but how do you keep your vacuum nozzles from coming loose? Is there a type of nozzle that is less likely to unscrew during customer use? I check them daily, it seems like I shouldn't have to.
We use a small stainless steel panhead screw through the cuff and hose. We tried glues but they typically didn't hold for very long. We didn't try gorilla glue though.