A painting apparatus comprising a paint module, an applicator assembly, and a dip-tube assembly containing a pump, the paint module having a container receiving section which is closeable by a releasably attachable lid, the applicator assembly being fluidly connectable to liquid in the container receiving section via the dip-tube assembly, in which the lid includes an aperture to allow the dip-tube assembly to pass therethrough and submerge the pump in the liquid (FIG. 1).