A hydrodynamic apparatus for cleaning channels and for monitoring channels is provided for pipes and channels. A disadvantage of all conventional bottom floor cleaners, flushing heads, and channel-cleaning nozzles is that during the cleaning process no observation and determination of the soiling state or, respectively, of the cleaning state of the channel and no recognition of damaged areas in the channel is possible. According to the invention, a monitoring unit (6) is installed selectively in...

An improved jet sewer cleaning device incorporating equipment for cleaning and dispensing predetermined controlled amounts of root-killing fumigant to obstructing root deposits.

A conduit cleaning jetting pig is provided, the pig having a central axis that can be aligned with a central axis of a conduit to be cleaned, the pig including: a seal means having an upstream side and a downstream side, the seal means effective to prevent a significant flow of fluids from the upstream side of the pig to the downstream side of the pig between the pig and the inside of the conduit when a differential pressure exists between the upstream side and the downstream side of the pig; a ...

A highly portable, multiple purpose drain cleaning apparatus comprising a payout drum supporting a snake hose wound thereon and supported for rotation on a portable support frame, a plurality of fluid tanks in selective fluid communication with a powered pump connected to the snake hose, and a nozzle attachment removably supported at the distal end of the snake hose. In one embodiment, with the snake hose wound in its storage mode thereon, the payout drum is quickly removable and replaceable wit...

An apparatus for applying dry herbicides to sewer lines which includes a container for storing a herbicide, a length of tubing, and nozzle means connected to the tubing. Also included are means for propelling herbicide stored in the container through the tubing such that herbicide may be dispersed from the nozzle. Locomotion means are also provided for transporting the nozzle within the interior of a sewer line such that the interior surfaces of a sewer line may be sprayed with a herbicide. In t...

A cleaning apparatus includes a tank housing and a partition disposed in the tank housing so as to divide the interior thereof into pumping and cleaning chambers as the only chambers within the tank housing adapted to contain cleaning liquid. A submersible pump mounted inside the pumping chamber has an outlet connected to a first end of at least one tubular member, which defines a flow path extending from the first end and through an opening in the partition to an opposing second end inside the ...

An open ended housing means is provided for receiving the pin or male end of a tubular member in one open housing end and the box or female end of a tubular member in the other open housing end. Brush means are rotatably mounted in the housing means and positioned relative to the opening housing ends for engaging the tubular member end and means are provided for rotating the brush means to clean the engaged ends of the tubular member. Additional means control the flow of solvent and gas to the h...

A sewer cleaning vehicle has a swilling or clean water tank for supplying a sewer cleaning hose having a sewer cleaning nozzle and designed to be lowered into a sewer to be cleaned, a waste tank and a pumping connection joining the waste tank with the swilling water tank. Furthermore, there is a water cleaning unit as part of a system for topping up the swilling water tank with water from the waste tank. For producing a high level of setling effect in the swilling water tank, this tank has gener...

A method for cleaning the interior of a heat exchanger includes connecting the heat exchanger (25a-e) to a fluid supply (26) and fluid delivery system (24). Fluid flow is provided from the fluid supply (26) through the interior of the heat exchanger (25a) in a first direction. The fluid flow is pulsed a predetermined number of times to change the pressure within the heat exchanger. The fluid flow is then pulsed a plurality of times through the heat exchanger in a second direction.

An improvement of the duct-cleaning unit is disclosed for scraping the deposits from the inner surface of the flow line, which are residual in the flow lines after the completion of conveyance of any fluid material to thereby clean the flow lines as well as recover the material left in the tubing. The improvement is comprised of a pair of spherical guiding bodies coupled to lengthwise opposing ends of a connector member, one to each end, through universal joints. The spherical guiding bodies are...