The object of the invention is to provide a device which can, with high efficiency, polish and clean the inner surface of a pipe, dry the wet inner surface of the pipe, and perform coating, wherein the device does not require a large pump or a large motive force, and does not require a blast hose or a suction hose. More specifically, provided is an intra-pipe turbine blast system that moves along the inside of a pipe and performs work by spraying a fluid toward the inside of the pipe, wherein: a gas injected from a fluid supply device to the upstream-side end inside the pipe imparts speed to a mixed phase fluid consisting of a liquid and solid particles which are likewise injected into the pipe; the flow speed of the mixed phase fluid is set to 3 m per second which is the critical speed at which solid particles can float without precipitating in the liquid, and as a result of such setting, there is a great effect on reducing the energy required for causing the mixed phase fluid to move; and the mixed phase fluid with such setting is injected at a high speed from a rotation nozzle of a turbine crawler which moves inside the pipe, thereby polishing the inner surface of the pipe, and following the polishing work, the turbine crawler can clean, dry and coat the inner surface of the pipe.

The suction device includes a suction port revolving around a revolution axis while sucking a fluid so as to generate an artificial tornado. The suction port revolves around the revolution axis while sucking the fluid, so that it is possible to generate an artificial tornado more stably.

An apparatus removes clogs from a condensate drain line. The apparatus includes: a vacuum attached to the condensate drain line, the vacuum pulling the clog material from the drain line, a control unit, an apparatus inlet forming a sealed connection point attaching the vacuum to the condensate drain line, an apparatus outlet allowing for drainage of the condensate, the outlet disposed lower than the inlet, a housing formed from durable, weatherproof material with a watertight seal, and a power supply powering the vacuum.

An apparatus removes clogs from a condensate drain line. The apparatus includes: a vacuum attached to the condensate drain line, the vacuum pulling the clog material from the drain line, a control unit, an apparatus inlet forming a sealed connection point attaching the vacuum to the condensate drain line, an apparatus outlet allowing for drainage of the condensate, the outlet disposed lower than the inlet, a housing formed from durable, weatherproof material with a watertight seal, and a power supply powering the vacuum.

An accessory tool for an extraction cleaner having an accessory hose, a fluid delivery system, and a fluid recovery system includes a lens, a tool body, a spray tip, and a cleanout assembly. The tool body is connectable to the fluid delivery system and the fluid recovery system via the accessory hose. The lens couples to the tool body to form a suction nozzle volume therebetween. The tool body defines a fluid channel opposite the lens. The spray tip dispenses a cleaning fluid from the fluid delivery system onto a surface during a spray cycle of the extraction cleaner. The cleanout assembly selectively diverts the cleaning fluid from the spray tip and into the suction nozzle volume via the fluid channel during a clean out cycle of the extraction cleaner to thereby clean the lens and the accessory hose.

An accessory tool for an extraction cleaner having an accessory hose, a fluid delivery system, and a fluid recovery system includes a lens, a tool body, a spray tip, and a cleanout assembly. The tool body is connectable to the fluid delivery system and the fluid recovery system via the accessory hose. The lens couples to the tool body to form a suction nozzle volume therebetween. The tool body defines a fluid channel opposite the lens. The spray tip dispenses a cleaning fluid from the fluid delivery system onto a surface during a spray cycle of the extraction cleaner. The cleanout assembly selectively diverts the cleaning fluid from the spray tip and into the suction nozzle volume via the fluid channel during a clean out cycle of the extraction cleaner to thereby clean the lens and the accessory hose.

A sewer cleaning vehicle includes a monitoring device for detecting a water level in a plurality of water tanks using a sensor engaged with the water tanks. The vehicle can present to an operator the water level together with operational conditions of the vehicle. The vehicle can continuously fill the water tanks based on the water level, and inform the operator of the water tanks having a water level lower than a user-configurable threshold.

A sewer cleaning vehicle includes a monitoring device for detecting a water level in a plurality of water tanks using a sensor engaged with the water tanks. The vehicle can present to an operator the water level together with operational conditions of the vehicle. The vehicle can continuously fill the water tanks based on the water level, and inform the operator of the water tanks having a water level lower than a user-configurable threshold.

A build material management system for a 3D printing system is described in which a non-fused purged build material port is to output purged non-fused build material from a build material transportation system. An emptying of substantially all non-fused build material from at least a portion of the build material transportation system to the non-fused purged build material port in response to a received purge signal is controlled by processing circuitry of the build material management system.

A build material management system for a 3D printing system is described in which a non-fused purged build material port is to output purged non-fused build material from a build material transportation system. An emptying of substantially all non-fused build material from at least a portion of the build material transportation system to the non-fused purged build material port in response to a received purge signal is controlled by processing circuitry of the build material management system.