If the cost of buying a paint roller with a tank is slightly higher than traditional models, then it saves money on equipment (paint tray, cutting net, protective tarpaulin, etc.). Using this roller is simple. You can pour the paint into the tank after removing the cap. It is best to use the nozzle provided to ensure that the correct amount of paint is poured into the tank. The roller is then used like a conventional roller, with the difference that it is pointless to dip it into the paint tray to reload it. Once the tank is empty, simply refill it with paint.