A channel for fluid flow comprising a first unit and a second unit connected to each other. The first unit comprises a first u-section having a first open top side, and a first grate extending across the first open top side and removably attached to the first u-section. The second unit comprises a second u-section having a second open top side, and a second grate extending across the second open top side and removably attached to the second u-section. The first grate defines a negative semicircular distal end having a first diameter and a first center point. The second grate defines a positive semicircular proximal end having a second diameter and a second center point. The first center point is coincident with the second center point and the first diameter and the second diameter are sized such that the positive semicircular proximal end fits within the negative semicircular distal end.

Modular floor drain systems that include symmetric substrate segments each having outwardly extending flanges for overlapping an adjacent edge of the other substrate segment. The system also includes a drain segment connected to the two or more symmetric substrate segments via at least one of the outwardly extending flanges. The symmetric substrate segments have identical configurations enabling interchangeable use thereof and complementary mating for ease of installation of the modular floor drain system. The substrate segments may have hinges for bending the symmetric substrate segment to allow for folding thereof.

A modular deck drain system comprising a bottom channel and an upper cover. The bottom channel has a pair of opposed side walls and a bottom surface coupled to the side walls. The bottom channel also has a plurality of stabilizing members coupled to and extending from an external surface of the bottom channel, and at least one modular junction node. The upper cover is configured to couple to the bottom channel. The upper cover has two upper walls, each wall having a top end and a bottom end, and the top end of each wall is coupled to an upper lip. A narrow top opening is formed by the upper lips. The upper cover has at least one cutline.

A floor drain includes a channel body defining a longitudinal direction and including two outflow channels which extend parallel to each other, each having a channel bottom and two channel walls. A connecting bar extends horizontally and connects the upper mutually facing longitudinal edges of the channel walls. An outflow opening interrupts the connecting bar and the channel walls directly connected thereto. An outflow fitting is arranged below the channel body and surrounds the outflow opening in the circumferential direction. At least one slat-like connecting element is detachably mounted on the channel body and is designed in such a way that it continues the connecting bar and the channel walls in the region interrupted by the outlet opening.

The invention relates to a locking element (11) for securing a grate (3). The locking element (11) comprises a spring element (113) kept between a cover element (111a) and a spring support element (117). The spring support element (117) is displaceable relative to the cover element (111a) by means of an actuating element (115). The displacement of the spring support element (117) causes a movement of at least one of the ends (113a, 113b) of the spring element (113) relative to the cover element (111a).

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.

Provided herein are systems and methods for cleaning surface water streams. More specifically, surface water is cleaned using the systems and methods described herein wherein the surface water cleaning system comprises sequential aligned basins which are configured to direct water flow through one or a series of filter media such that the filtered water stream is reduced in organic chemicals and/or particles.

Disclosed is a trash collector for drainage channels. The trash collector includes a main frame provided with engaged parts engaged with engaging protrusions of an inlet of a drainage channel and a penetration part having one side vertically penetrated, an opening and closing plate mounted in the penetration part so as to selectively open and close the penetration part depending on a load of water introduced through the inlet of the drainage channel, and a hinge shaft interposed between the main frame and the opening and closing plate so as to axially rotate the opening and closing plate. A base plate of the main frame and the opening and closing plate have a designated height so that fallen leaves and road trash accumulated and gathered on the base plate and the opening and closing plate may be sufficiently suctioned by suction force of a street cleaning vehicle.

A fluidic coupler for fluidically communicating a hose with a trench drain in a support surface comprises a series of walls arranged to form a cavity and arranged for insertion into the trench drain, and a hose coupler supported on one of the walls for fluidically connecting a hose so that liquid discharged therefrom is released into the cavity. The cavity is open at the bottom of the fluidic coupler so as to release the liquid to the trench drain. The fluidic coupler includes stabilizing feet supported on opposite walls which are parallel to sidewalls of the trench drain. The feet include a pair of distinct feet located at spaced positions on a carrying one of the opposite walls, and on either side of the hose coupler.

A tile drain and method of installing a tile drain is provided. The tile drain includes a drain body and a drain cover. The drain body defines a top opening, top weep apertures, and bottom weep apertures. The top opening receives the drain cover and serves as the primary drain for the tile drain. The top weep apertures are positioned below a top layer, such as a tile layer, of the base so as to receive fluid positioned between the top layer and a top waterproofing layer of the base. The sub weep apertures are positioned below the top waterproofing layer of the base so as to receive fluid positioned between the top waterproofing layer and a bottom waterproofing layer of the base. The drain body is encapsulated within the base, but the drain cover is adjustable relative to, and removable from, the drain body.