A low-profile fluid collection conduit includes an elongate outer cover having an upper portion and a lower portion generally opposite the upper portion, with the outer cover being much wider than it is tall and defining an interior volume. An elongate rigid spacer is fitted within the interior volume of the elongate outer cover, with the elongate spacer allowing the majority of the interior volume to be unfilled so as to permit the flow of fluid along and within the elongate outer cover. The collection conduit is used with a fluid-impermeable membrane as part of a landfill fluid collection and conveyance system.

A drainage system for connecting a rack drain on a mobile plant rack to a stationary building drain, wherein the plant rack is operable to slide between first and second positions wherein the building drain is proximate and distal thereto, respectively. The drainage system comprises at least one horizontal support proximate to the bottom of the mobile plant rack and a flexible conduit fluidically connected to the discharge end of the rack drain, extending arcuately between a receiving end fixed within the interior rack space and a discharge end fixed outside of the interior rack space, wherein the discharge end is fluidically connected to the stationary building drain. The receiving end of the flexible conduit is raised above the discharge end and the flexible conduit is supported by the at least one horizontal support to maintain a generally down slope grade.

A low-profile fluid collection conduit includes an elongate outer cover having an upper portion and a lower portion generally opposite the upper portion, with the outer cover being much wider than it is tall and defining an interior volume. An elongate rigid spacer is fitted within the interior volume of the elongate outer cover, with the elongate spacer allowing the majority of the interior volume to be unfilled so as to permit the flow of fluid along and within the elongate outer cover. The collection conduit is used with a fluid-impermeable membrane as part of a landfill fluid collection and conveyance system.

A low-profile fluid collection conduit includes an elongate outer cover having an upper portion and a lower portion generally opposite the upper portion, with the outer cover being much wider than it is tall and defining an interior volume. An elongate rigid spacer is fitted within the interior volume of the elongate outer cover, with the elongate spacer allowing the majority of the interior volume to be unfilled so as to permit the flow of fluid along and within the elongate outer cover. The collection conduit is used with a fluid-impermeable membrane as part of a landfill fluid collection and conveyance system.

A sump system includes a catch basin and a sump pump. The catch basin is configured to receive runoff water. The catch basin has an upper end and a bottom surface. The catch basin defines a vertical chamber and a horizontal chamber. The vertical chamber extends downward in a vertical direction from the upper end to a first portion of the bottom surface. The horizontal chamber intersects the first chamber to form an intersecting region. The horizontal chamber is defined by an upper surface and a second portion the bottom surface. The horizontal chamber extends outwardly in a horizontal direction from an outer periphery of the first chamber and has a vertical dimension that extends upward from the bottom surface to the upper surface. The upper surface is positioned below the upper end. The sump pump is disposed within the catch basin.

A sump system includes a catch basin and a sump pump. The catch basin is configured to receive runoff water. The catch basin has an upper end and a bottom surface. The catch basin defines a vertical chamber and a horizontal chamber. The vertical chamber extends downward in a vertical direction from the upper end to a first portion of the bottom surface. The horizontal chamber intersects the first chamber to form an intersecting region. The horizontal chamber is defined by an upper surface and a second portion the bottom surface. The horizontal chamber extends outwardly in a horizontal direction from an outer periphery of the first chamber and has a vertical dimension that extends upward from the bottom surface to the upper surface. The upper surface is positioned below the upper end. The sump pump is disposed within the catch basin.

A method of manufacturing a water detention chamber by providing a polymer melt, injecting a CO2 blowing agent into the polymer melt, and injecting the polymer melt and CO2 blowing agent blend into a mold cavity. The mold cavity defines an arch-shaped corrugated chamber having upstanding ribs and a flange having an upper surface and a lower surface. The flange has one or more protrusions, preferably elongated members, at the first end of the chamber. The flange also has one or more mating apertures or cavities at the opposite end from the protrusions.

An underground water detention and release chamber including two concrete galleys and a plastic cap. Each galley has a substantially horizontally disposed top deck and two substantially vertically disposed side walls. The top deck and side walls connecting at respective ends to form first and second side edges. The two galleys positioned parallel to and a distance apart each other such that adjacent side walls of the galleys define a longitudinal channel between the galleys. The cap spanning the longitudinal channel and includes an arch-shaped body having two side base portions. Each side base portion has a horizontal strut and a vertical strut extending away from the body such that each base conforms to a side edge of a respective galley to position the cap on the galleys. The cap has a plurality of reinforcing members.

An improved liquid run-off disposal system is described having an infiltration chamber (72) with first and second sidewalls (74). In cross-sectional view the first and second sidewalls (74) each include an inner surface 76 and outer surface (78), and each sidewall (74) includes a plurality of integrated louvre-shaped apertures (80). In cross-sectional view each louvre-shaped aperture (80) includes an upper surface (82) and a lower surface (84) which are angled upwards from the outer surface (78) and protrude inwards from the inner surface (76) into the interior of the infiltration chamber (72). The upper and lower surfaces (82, 84) comprise a plurality of angled sections, the angled sections being arranged so as to form a substantially vertical flow path through a portion of the aperture (80). The angled sections of the upper and lower surfaces (82, 84) are arranged at an angle and of a length so as to substantially overlap when viewed in a horizontal direction. The overlapping region Y1 ensures that the apertures (80) will admit the exit of water but substantially inhibit the entry of soil wherein, in use, when liquid run-off is piped into the infiltration chamber (72) it can drain away through the apertures (80) and into the surrounding soil.

An improved liquid run-off disposal system is described having an infiltration chamber (72) with first and second sidewalls (74). In cross-sectional view the first and second sidewalls (74) each include an inner surface 76 and outer surface (78), and each sidewall (74) includes a plurality of integrated louvre-shaped apertures (80). In cross-sectional view each louvre-shaped aperture (80) includes an upper surface (82) and a lower surface (84) which are angled upwards from the outer surface (78) and protrude inwards from the inner surface (76) into the interior of the infiltration chamber (72). The upper and lower surfaces (82, 84) comprise a plurality of angled sections, the angled sections being arranged so as to form a substantially vertical flow path through a portion of the aperture (80). The angled sections of the upper and lower surfaces (82, 84) are arranged at an angle and of a length so as to substantially overlap when viewed in a horizontal direction. The overlapping region Y1 ensures that the apertures (80) will admit the exit of water but substantially inhibit the entry of soil wherein, in use, when liquid run-off is piped into the infiltration chamber (72) it can drain away through the apertures (80) and into the surrounding soil.