Abstract: A drum assembly for the collection and disposal of hazardous waste includes an enclosure with an access hole for collecting the waste. After the waste has been collected, the drum is opened and an insert is positioned to cover the access hole. The drum is then closed to form a sealed container.

Abstract: A water envelope pump and tank system configured with the water envelope and pump internal to the tank. The tank has first and second laterally opposed openings, fitted with externally protruding flanges, the openings disposed proximate to the bottom of the tank. A flexible envelope conforming in shape to a portion of the tank is positioned within the tank. The envelope has two openings corresponding to the tank openings located in two extended portions formed for fitting the tank flanges. The tank and envelope openings are sufficiently large to receive and encompass a pump system, comprising a pump and associated tubing, and a pump guard system. A means for sealing the envelope openings with respect to the tank is employed at the tank and envelope openings. A removably mounted motor is disposed outside the tank and communicates with the pump by a drive means passing through the second of the tank openings.