A drain or sump box features a combination of a housing, a pump, a float switch and a deodorant bar retainer. The housing may include a housing floor and a wall structure attached thereto and configured to receive and contain waste water. The pump is arranged in the housing to respond to signaling for pumping the waste water from the housing. The float switch is arranged in the housing to sense the level of the waste water and provide the signaling to turn the pump on when the waste water exceeds a certain level. The deodorant bar retainer is arranged in the housing in the housing to receive and retain a deodorant bar for preventing, reducing or masking waste water odor and associated bacteria causing the waste water odor.

A drain or sump box features a combination of a housing, a pump, a float switch and a deodorant bar retainer. The housing may include a housing floor and a wall structure attached thereto and configured to receive and contain waste water. The pump is arranged in the housing to respond to signaling for pumping the waste water from the housing. The float switch is arranged in the housing to sense the level of the waste water and provide the signaling to turn the pump on when the waste water exceeds a certain level. The deodorant bar retainer is arranged in the housing in the housing to receive and retain a deodorant bar for preventing, reducing or masking waste water odor and associated bacteria causing the waste water odor.

A septic system, including a septic tank and a pipe positioned within the septic tank, is provided. The pipe receives sewage and provides a flooded, anaerobic environment for sewage passing therethrough. The outlet of the pipe is positioned inside the septic tank and is optionally spaced from the outlet of the septic tank. In operation, the sewage introduced into the pipe generally separates into a solid portion comprising sludge, which remains in the pipe, and a liquid portion, which passes through and around the sludge. In one embodiment, the septic system has an absence of a sump chamber upstream of the septic tank.

A septic system, including a septic tank and a pipe positioned within the septic tank, is provided. The pipe receives sewage and provides a flooded, anaerobic environment for sewage passing therethrough. The outlet of the pipe is positioned inside the septic tank and is optionally spaced from the outlet of the septic tank. In operation, the sewage introduced into the pipe generally separates into a solid portion comprising sludge, which remains in the pipe, and a liquid portion, which passes through and around the sludge. In one embodiment, the septic system has an absence of a sump chamber upstream of the septic tank.

Storage tanks, for example, underground septic tanks, and their methods of fabrication are provided. The tanks include a substantially liquid impermeable plastic vessel having a top, a bottom, and sides; a concrete container encasing and retaining the plastic vessel, the concrete container contacting the bottom and at least partially contacting the sides of the plastic vessel; and at least one opening for receiving effluent, for example, waste effluent, into the plastic vessel. The methods of fabricating the tanks include positioning a plastic vessel into an enclosure; introducing concrete into the enclosure about the plastic vessel; allowing the fluid concrete to cure to provide a substantially solid concrete container about the plastic vessel; and removing the plastic vessel having a concrete container from the enclosure. Vessel shape retaining devices are also disclosed. Aspects of the invention are uniquely adapted to underground storage.

Storage tanks, for example, underground septic tanks, and their methods of fabrication are provided. The tanks include a substantially liquid impermeable plastic vessel having a top, a bottom, and sides; a concrete container encasing and retaining the plastic vessel, the concrete container contacting the bottom and at least partially contacting the sides of the plastic vessel; and at least one opening for receiving effluent, for example, waste effluent, into the plastic vessel. The methods of fabricating the tanks include positioning a plastic vessel into an enclosure; introducing concrete into the enclosure about the plastic vessel; allowing the fluid concrete to cure to provide a substantially solid concrete container about the plastic vessel; and removing the plastic vessel having a concrete container from the enclosure. Vessel shape retaining devices are also disclosed. Aspects of the invention are uniquely adapted to underground storage.

Provided are a concrete pouring guiding device and a construction method for pouring a concrete tank wall of a sewage treatment tank, wherein the concrete pouring guiding device includes a guiding element and a mounting seat configured to be fixed on an external mounting position; the guiding element is threadedly engaged with the mounting seat, so as to enable the guiding element to move in a first direction with respect to the mounting seat; in the first direction, one end of the guiding element is configured to allow concrete to flow into the guiding element, and the other end of the guiding element is configured to extend to a target position; and the first direction is a length direction of the guiding element.

Provided are a concrete pouring guiding device and a construction method for pouring a concrete tank wall of a sewage treatment tank, wherein the concrete pouring guiding device includes a guiding element and a mounting seat configured to be fixed on an external mounting position; the guiding element is threadedly engaged with the mounting seat, so as to enable the guiding element to move in a first direction with respect to the mounting seat; in the first direction, one end of the guiding element is configured to allow concrete to flow into the guiding element, and the other end of the guiding element is configured to extend to a target position; and the first direction is a length direction of the guiding element.

An odor neutralization device for a wastewater lift station wastewater vent. The device is formed from a housing having a vertical standpipe with a first end securable to the receiver vent of a wastewater lift station and a second end extending above an admixture of essential oils and a surfactant. A baffle arrangement increases the velocity of air exiting or entering the wastewater lift station. The accelerated air is directed across the surface of the admixture for altering the characteristics of any odor laden air.

An odor neutralization device for a wastewater lift station wastewater vent. The device is formed from a housing having a vertical standpipe with a first end securable to the receiver vent of a wastewater lift station and a second end extending above an admixture of essential oils and a surfactant. A baffle arrangement increases the velocity of air exiting or entering the wastewater lift station. The accelerated air is directed across the surface of the admixture for altering the characteristics of any odor laden air.