An illustrated view of an exemplary retractable rope reel device for protecting a tiger tail or jetter hose of a jet truck and trailer mounted unit. The retractable rope reel device keeps the tiger tail in place and stops the jetter hose from dragging or scraping along an edge of a pipe or manhole and causing replacement or leaking of the jetter hose. The retractable rope reel device is useful for protecting users working on the jet truck and trailer from being in the road when retrieving a rope from a side cargo area of the jet truck and trailer. Further, the retractable rope reel device is useful for saving time and energy of the users from retrieving and returning the rope from the jet truck and trailer thus being more efficient and safer in the use of time and costs. The device has a canister with a retractable reel and a trigger on an inside of the canister. The trigger allows retraction of a rope that is coupled to the reel. The rope is coupled to a tiger tail for keeping the tiger tail securely in a desired position. The device has a bracket for attaching the device to a bumper and then can be removed or kept for future use.

A pump-storage device comprises a treatment container including an interior separated by a partitioning board into an upper chamber and a lower chamber intercommunicating with the upper chamber via a first intercommunication port. An inlet intercommunicates with the upper chamber. A second intercommunication port intercommunicates the lower chamber with an outside. A first control valve controls intercommunication between the upper and lower chambers. A second control valve controls intercommunication between the upper chamber and a gas suction source. An actuation rod extends through the first intercommunication port. A first fixing block, a second fixing block, and a third fixing block are mounted from top to bottom in sequence on the actuation rod. An upper stop plate is disposed between the first and second fixing blocks. A lower stop plate is disposed between the second and third fixing blocks. The upper and lower stop plates are elastically supported.

A separator unit includes a tank defining an internal volume and having an inlet and an outlet. An insert is provided within the tank, the insert including a down cylinder substantially centrally disposed within the tank and a baffle assembly at an external side of the down cylinder. The baffle assembly defines first and second inlet flumes for flowing incoming water from an external side of the down cylinder to an internal volume within the down cylinder. Inward ends of the first and second inlet flumes are positioned and oriented to create first and second vortex flows that progress downward within the internal volume, wherein a rotational direction of the first vortex flow is opposite a rotational direction of the second vortex flow in top plan view.

A septic hose compressor is provided that is attachable to a conventional septic hose such as the hoses used in RVs. The system includes an air-tight second end cap that attaches to the second end of the septic hose. The first end cap attaches to the first end of the septic hose and includes a one-way valve or other flow restriction mechanism to allow for the removal of air from the interior of the septic hose to provide a compressed septic hose that is suitable for storage.

A boom hose apparatus for a material collection vehicle includes a telescoping boom assembly and a hose assembly supported by the boom assembly. The boom assembly includes a plurality of telescoping conduits. A flexible hose is received through the telescoping conduits and can slidably extend from, or retract into, the conduits independently from the telescoping of the conduits.

A boom hose apparatus for a material collection vehicle includes a telescoping boom assembly and a hose assembly supported by the boom assembly. The boom assembly includes a plurality of telescoping conduits. A flexible hose is received through the telescoping conduits and can slidably extend from, or retract into, the conduits independently from the telescoping of the conduits.

A sewer cleaning device has a rinsing hose, to which pressurized water is applied, which is stored on an assigned storage reel and which passes through a transportation apparatus adjacent to the storage reel. A manner of operating, which protects the rinsing hose, is achieved by providing a reel arrangement, around which the rinsing hose is wrapped at least once, having two redirection reels arranged laterally adjacent to one another in the radial direction, which are offset in relation to one another in the axial direction by at least the thickness of the rinsing hose and of which at least one redirection reel is arranged tilted about an axis of symmetry, which perpendicularly intersects the axes of the two redirection reels, so that during each complete wrap around the reel arrangement forming the transportation apparatus by the rinsing hose, a pitch of the path assigned to the rinsing hose results.

A boom hose apparatus for a material collection vehicle includes a telescoping boom assembly and a hose assembly supported by the boom assembly. The boom assembly includes a plurality of telescoping conduits. A flexible hose is received through the telescoping conduits and can slidably extend from, or retract into, the conduits independently from the telescoping of the conduits.

A large bore mobile vacuum system is used with special large bore vacuum adapters to enable a method and system for cleaning ground tanks used to store wastewater. The ground tank cleaning method and system may be safer and more efficient that conventional methods by enabling a human operator to physically remain outside of the ground tank, while preventing the contents of the ground tank from being exposed to the environment during the ground tank cleaning.

A separator unit includes a tank defining an internal volume and having an inlet and an outlet. An insert is provided within the tank, the insert including a down cylinder substantially centrally disposed within the tank and a baffle assembly at an external side of the down cylinder. The baffle assembly defines first and second inlet flumes for flowing incoming water from an external side of the down cylinder to an internal volume within the down cylinder. Inward ends of the first and second inlet flumes are positioned and oriented to create first and second vortex flows that progress downward within the internal volume, wherein a rotational direction of the first vortex flow is opposite a rotational direction of the second vortex flow in top plan view.