Abstract: A readily transportable, compact and self-contained drain cleaning apparatus includes a hand-held control housing provided with an internal passage into which a release valve member extends for regulating fluid flow through the passage. The control housing includes a cartridge housing portion for attaching a miniature cartridge, containing a pressurized gaseous medium and preferably either a drain cleaning or algaecide fluid, thereto with an interior of the cartridge opening into the internal passage. The cartridge housing is provided with a safety aperture for pressure relief purposes. The control housing has an elongated tubular member attached thereto through a rotatable coupling and the tubular member has an end, remote from the control housing, provided with a terminal discharge member that is adapted to be sealing engaged with an open portion of a clogged drain conduit.

Abstract: A readily transportable, compact and self-contained drain cleaning apparatus includes a hand-held control housing that is provided with an internal passage into which a release member and an adjustable regulating unit extend at spaced intervals such that a fluid chamber is defined between the release member and the regulating unit within the internal passage. The control housing includes a cartridge housing portion for attaching a miniature cartridge, containing a pressurized gaseous medium and preferably either a drain cleaning or algaecide fluid, thereto with an interior of the cartridge opening into the internal passage downstream of the regulating unit. Upstream of the release member, the control housing has an elongated tube attached thereto and the tube has an end, remote from the control housing, provided with a terminal discharge member that is adapted to be sealingly engaged with an open portion of a clogged drain conduit.