Spread a drop cloth on the floor. Place a plastic bucket on top and pour paint thinner into the bucket until it is about 2 inches deep. You need a shallow bath of paint thinner in which to soak wet roller paint roller tubes. If the paint roller you are working with is soggy with paint, then put on plastic gloves before picking up the roller.
Grip the roller frame handle, which is attached to the wire frame, with your secondary hand.
Grip the paint roller with your main writing hand.
Pull the paint roller in the direction of your writing hand, squeezing it gently as you pull it. The roller will slowly move off the frame.
Place the roller into the paint thinner bath. Allow the roller to soak for about 10 minutes. Dip your hand into the bath with gloves on to retrieve the roller. Squeeze out the paint thinner. Place the roller beneath running warm water and wash thoroughly with a little dish-washing soap. Allow the roller to dry.