These SV vacuums work really well for HOME use-the plastic bodies and their motors just don't hold up for commercial-industrial use.already the few years old similar SV machines we have at the transmitter site are slated to be replaced.Not only picking up whatever dry material-but spilled water from transmitter cooling systems that have sprung leaks.Too the machines here get misused since they are used by multiple users that don't care about vacuum cleaners.I have given up trying to care for vacuums that get mistreated here at work.the motors in the SV vacuums get corroded because adfter wet pickup-users don't dump their drums-so the motor is constantly exposed to the moisture.