a paint roller is provided with a removable sleeve receiving a cover having a pile on a stretchable flexible backing . a reversible , speed controllable pump on a hand cart provides paint to the roller from a supply under control of a switch at the roller handle . the roller handle contains a radio transmitter for transmission of pump control signals to a receiver in a pump housing mounted to the hand cart . a peristaltic pump is used for the pumping , and is reversible to facilitate draining of the system back to the paint source . opening of a door on the pump housing releases pump roller pressure from pump tubing , provides access to pump rollers and pump tubing , and thereby facilitates installation and removal of the pump tubing . conventional water hose fittings are provided to facilitate cleaning by connection to a hose bib of a domestic water system , if desired . the entire unit is conveniently transportable on a three - wheel cart and provided with a lamp for illuminating the work , and electric power supply for the pump . a spear type intake tube is available for puncturing a paint can and removing paint directly through a punctured lid thereof , without opening the can . the cart includes a well to receive a conventional five gallon paint can , and a well to receive the roller , which well may also be used to facilitate cleaning . there is a swivel coupling on the paint supply line to the roller feed line .