Clean up the sprayer out in just 2 hours of working with it. Vacant out the sprayer tank and rinse it out absolutely so paint would not dry within it. Did you utilize BM progress satin? Have any issues with the paint not matching the actual coloration? Getting mine back http://paint-cabinets-charlotte01962.blogprodesign.com/10040826/the-5-second-trick-for-cabinet-painting-companies