A mobile power supply device and method for energizing a sump pump in a sump pit during a power outage, and a mobile power supply device and method for energizing a sump pump secured to a bottom portion of the device. The device includes an enclosure similar to a dolly that is manufactured from plastic or similar non-electrically conductive material to minimize weight to enable the manual lifting and pulling of the mobile power supply device, and to promote safety by reducing the chance of an electrical short circuit when supplying electrical power to a sump pump. The enclosure includes a carrying handle and a relatively large dolly handle that cooperate with castors attached to a bottom portion or bottom surface of the enclosure. The castors promote manual movement of the device upon a substantially horizontal surface or up and/or down stairs leading to a sump pump in a sump pump well or pit in a basement.

A mobile power supply device and method for energizing a sump pump in a sump pit during a power outage, and a mobile power supply device and method for energizing a sump pump secured to a bottom portion of the device. The device includes an enclosure similar to a dolly that is manufactured from plastic or similar non-electrically conductive material to minimize weight to enable the manual lifting and pulling of the mobile power supply device, and to promote safety by reducing the chance of an electrical short circuit when supplying electrical power to a sump pump. The enclosure includes a carrying handle and a relatively large dolly handle that cooperate with castors attached to a bottom portion or bottom surface of the enclosure. The castors promote manual movement of the device upon a substantially horizontal surface or up and/or down stairs leading to a sump pump in a sump pump well or pit in a basement.

An automated fluid transfer system and method allows a person to pour fluid, such as used motor oil, into a collection pan which automatically pumps the fluid to a bulk storage tank, without secondary containment in the collection pan. The system utilizes an air powered pump, thereby eliminating the use of electricity which creates fire and explosion hazards. A float rises and falls in response to fluid in the pan, so as to automatically turn on and turn off the pump. An alternative manual mode is provided to allow fluid to be sucked by the pump from a container directly into the bulk storage tank, while bypassing the collection pan.

An automated fluid transfer system and method allows a person to pour fluid, such as used motor oil, into a collection pan which automatically pumps the fluid to a bulk storage tank, without secondary containment in the collection pan. The system utilizes an air powered pump, thereby eliminating the use of electricity which creates fire and explosion hazards. A float rises and falls in response to fluid in the pan, so as to automatically turn on and turn off the pump. An alternative manual mode is provided to allow fluid to be sucked by the pump from a container directly into the bulk storage tank, while bypassing the collection pan.

A system for managing liquid waste includes a first liquid container that receives waste liquid, a liquid transfer pump fluidly connected to the first liquid container; and a second liquid container fluidly connectable to the liquid transfer pump. The liquid transfer pump is can be selectively activated to transfer liquid waste from the first liquid container to the second liquid container when the second liquid container is fluidly connected to the liquid transfer pump. A method for managing liquid waste includes the steps of receiving waste liquid into a first liquid container, monitoring the amount of liquid in the first container, connecting a second liquid container to a liquid transfer pump that is connected to the first liquid container, after the amount of liquid received into the first liquid container reaches a predefined level, transferring liquid from the first liquid container into the second liquid container with the liquid transfer pump, and removing liquid transferred to the second liquid container.

A system for managing liquid waste includes a first liquid container that receives waste liquid, a liquid transfer pump fluidly connected to the first liquid container; and a second liquid container fluidly connectable to the liquid transfer pump. The liquid transfer pump is can be selectively activated to transfer liquid waste from the first liquid container to the second liquid container when the second liquid container is fluidly connected to the liquid transfer pump. A method for managing liquid waste includes the steps of receiving waste liquid into a first liquid container, monitoring the amount of liquid in the first container, connecting a second liquid container to a liquid transfer pump that is connected to the first liquid container, after the amount of liquid received into the first liquid container reaches a predefined level, transferring liquid from the first liquid container into the second liquid container with the liquid transfer pump, and removing liquid transferred to the second liquid container.

A pump cartridge comprising an external housing including a lateral wall, a first fin extending from a first side of the lateral wall, and a second fin extending from a second side of the lateral wall. The second side of the lateral wall may be opposite the first side of the lateral wall, such that the fins are on opposite sides of the lateral wall. The pump cartridge may be part of a pumping system further comprised of a chassis comprising a pump basin including an interior side wall, a first tab extending inwardly from the interior side wall, and a second tab extending inwardly from the interior side wall and opposed to the first tab. The first fin of the cartridge is reversibly engageable with the first tab of the chassis and the second fin of the cartridge is reversibly engageable with the second tab of the chassis.

A pump cartridge comprising an external housing including a lateral wall, a first fin extending from a first side of the lateral wall, and a second fin extending from a second side of the lateral wall. The second side of the lateral wall may be opposite the first side of the lateral wall, such that the fins are on opposite sides of the lateral wall. The pump cartridge may be part of a pumping system further comprised of a chassis comprising a pump basin including an interior side wall, a first tab extending inwardly from the interior side wall, and a second tab extending inwardly from the interior side wall and opposed to the first tab. The first fin of the cartridge is reversibly engageable with the first tab of the chassis and the second fin of the cartridge is reversibly engageable with the second tab of the chassis.

Disclosed are methods, systems, and computer-readable medium to perform operations including: determining, based on at least one dimension of an annulus of a wellbore, a respective downhole position at which to position at least one of an upper sensor and a lower sensor of a downhole pumping tool that includes a pump; positioning the downhole pumping tool in the wellbore such that at least one of the upper sensor and the lower sensor are positioned at the respective downhole position; in response to the upper sensor detecting a first fluid level in the annulus, activating the pump so that the pump pumps fluid from the annulus into a tubing of the wellbore, where the tubing carries the fluid to the surface; and in response to the lower sensor detecting a second fluid level in the annulus, deactivating the pump, where the second fluid level is below the first fluid level.

An automated fluid transfer system and method allows a person to pour fluid, such as used motor oil, into a collection pan which automatically pumps the fluid to a bulk storage tank, without secondary containment in the collection pan. The system utilizes an air powered pump, thereby eliminating the use of electricity which creates fire and explosion hazards. A float rises and falls in response to fluid in the pan, so as to automatically turn on and turn off the pump. An alternative manual mode is provided to allow fluid to be sucked by the pump from a container directly into the bulk storage tank, while bypassing the collection pan.