Slotted channels with coverings (10) are known for discharging surface water into a channel. The covering has at least one horizontal sheet-metal portion (13) and two vertical sheet-metal portions (11, 12) which are connected to one another via connection devices and have a slot (14) between one another for discharging liquid, for example surface water, into the channel body. In order to allow a particularly complete discharge of water, it is proposed that the horizontal sheet-metal portion (13) comprises drip devices (15) which are mounted and designed in such a way that water running along on an underside of the horizontal sheet-metal portion (13) drips into the channel body.

The invention relates generally to an arrangement (100) for connecting sewerage system and a French drain. The arrangement for a sewerage system comprising a French drain comprises an inspection well device (102) suitable to be connected between a first drain system and a French drain system for enabling installation of said French drain at least partly under of said first drain wherein said inspection well device (102) further comprises a bottom part (104) and a tube part (106) protruding from said bottom part (104) whereby preventing the unwanted water and dirties entering into said French drain.

To provide a portable device capable of capturing a flow of water from a stream, storm drain or runoff channel, on command and send that captured water into a pipe system, while allowing remote adjustment of the capture and flow rates out of the cube device, the stormwater syphon cube includes a rock grate to prevent stormwater borne objects from entering the device, and an exit valve adjustable via cable control, a side extraction valve adjustable via cable control to adjust the water flow into the extraction pipe, and extraction pipe attached to the cube to carry extracted water away to storage. The sealed exit pipe acts as a syphon drawing water out of the cube.

A trench drain apparatus includes a trench body and an insert that can be assembled to the trench body to adjustably locate a trench drain hole in the insert relative to a footprint of the trench body. This allows adjustment of the trench drain hole at the installation site, yet takes advantage of pre-manufactured components. An upper surface of the trench body may receive an optional waterproof membrane clamped onto the sealing surface by a clamp ring. The insert can be rotated 180 degrees prior to installation to provide two different drain hole locations, or can be cut on site at one or both ends so that the drain hole ends up at desired location optimally matching a pre-existing drainage pipe opening. Methods related to the above are also provided, including adjusting the insert to locate the trench drain hole at an optimal location.

A linear drain assembly is provided. The linear drain assembly includes a base portion and a first peripheral portion. The base portion includes a base trough and a base flange. The first peripheral portion includes a first trough and a first flange. The first trough is nested within the base trough and the base flange is nested within the first flange.

The invention relates to a gutter element for draining, for example, road surfaces, which can be joined together to form a line of guttering. In order to seal off the connection, an elastic seal (30) is provided in the abutment region. In order to improve the hydraulic properties of the gutter, the cross-sectional profile of the invert (16) of the gutter (10) is substantially V-shaped. To improve sealing, the profile following the seal (30) in cross-section should be formed differently to that of the invert (16) in such a way that it has a constant maximum radius of curvature in the region of the gutter invert.

In order to seal gutters at the ends with low output, an end wall (10) of a gutter (30) is provided for surface drainage, comprising a plate element (11) which can be secured at a first or a second end of the gutter (30) substantially sealingly closing a cross-section of the gutter (30). In addition, the ends (31, 32) of the gutter (30) are formed differently. According to the invention, in order to reduce the output, the plate element (11) can be secured at the first end (31) of the gutter (30) with a first edge (12) oriented upwards or can be secured at the second end (32) with a second edge (13) oriented upwards. In this way, an adjustment can be made to both differently formed ends (31, 32) of the gutter (30) by simply rotating the plate element.

A semi-round drain body includes an upper surface and a drain hole extending through the upper surface. The upper surface includes a first straight edge, a second straight edge disposed opposite to the first straight edge, a first curved edge, and a second curved edge disposed opposite to the first curved edge. The drain hole is disposed between the first and second straight edges and between the first and second curved edges. The first curved edge connects a first end of the first straight edge and a first end of the second straight edge to each other, and the second curved edge connects a second end of the first straight edge and a second end of the second straight edge to each other.

A river course ecological treatment system for use in a river includes a plurality of plastic retaining dams disposed in the river that receive and divide the river course into sequential retaining regions arranged in a direction from upstream to downstream; a plurality of ecological biological water purification systems disposed in the sequential retaining regions and each ecological biological water purification system being located between any two adjacent plastic retaining dams of the plurality of plastic retaining dams to purify water within the sequential retaining regions and discharge purified water; and at least one damp land ecological water purification system that is disposed beside the river and that includes a rainwater channel disposed along the river; aquatic plants disposed in the rainwater channel are effective to purify water flowing within the rainwater channel; and draining vents provided in the rainwater channel that discharge purified water into the river course.

A channel drain for use in a fabricated surface having an exposed appearance. The channel drain includes a first body having a plurality of support surfaces, with each support surface extending from a respective body sidewall in spaced relation to a body lower wall. A plurality of inserts are insertable into the first body. Each insert includes an insert cavity sized and structured to receive a selected material having an appearance substantially identical to the exposed appearance of the fabricated surface. Each insert is supported by certain ones of the plurality of support surfaces when inserted into the first body and is sized and structured to define a gap between the pair of body sidewalls when inserted into the first body, with the gap allowing for fluid to flow therethrough toward the body lower wall.