This @wagner.professionals paint sprayer came in for repair as it kept tripping out. The problem is, it's leaking paint from the piston. But the drain hole was also blocked, so the paint eventually built up inside the gearbox until it reached the motor and tripped the breaker. Total strip down was needed to clean it all out and get it running again but sadly it was still leaking very badly. I was testing it with thinners, which would have caused it to leak more as it's very thin. Maybe a heavier

Wagner Paint Sprayer Extension | Screwfix