A pop-up emitter includes a conduit, a cover plate, a pop-up lid, and a clip. The conduit defines a flow channel configured to establish fluid communication with a drainage system. The cover plate protrudes radially outward from a top end of the conduit and about the flow channel. The cover plate defines a slot along a top surface of the cover plate. The pop-up lid has a horizontally extending pin protruding outward therefrom. The pin is disposed within the slot. The pop-up lid is configured to pivot about the pin to transition between a first position where the plate covers the flow channel along the top end and a second position where the flow channel is exposed such that water is emitted therefrom. The clip is disposed within the slot and engages the pin such that the clip retains the pin within the slot.

The present disclosure provides a system for accelerating salt leaching and drainage of soil based on a negative pressure, and relates to the technical field of soil improvement. The system includes a concealed pipe. The concealed pipe is communicated with a negative pressure chamber. The negative pressure chamber is communicated with an air extracting pump through an air extraction port, and the air extracting pump is configured to evacuate the negative pressure chamber. In the present disclosure, the concealed pipe is arranged, the structure of the concealed pipe is improved, and the negative pressure chamber is arranged between the air extracting pump and the concealed pipe. By evacuating the negative pressure chamber to form a negative pressure area around the concealed pipe for field drainage, the drainage of water in soil is accelerated by the pressure difference, thereby improving the efficiency of drainage and salt leaching per unit time.

Individual four-sided shaped modules used in an assembly for underground storage of storm water and other fluid storage needs. Modules are assembled into a resultant four-sided tiling shape for maximized structural strength and material use efficiency. Internal four-sided shaped modules are assembled and encased by external four-sided shaped modules. Internal adjacent modules are in direct fluid communications with one another through a channel-less chamber. Internal four-sided shaped modules drain into four-sided shaped modules chamber where fluid is either stored or drained. Assemblies include various top and side pieces along with access ports for entry into said assembly.

Fluid flow enhancing devices disclosed herein are adapted to enhance flow of fluid through subsurface watershed conduits, for example, culverts, drainpipe and the like. Such fluid flow enhancing devices advantageously enhance watershed runoff functionality in subsurface watershed conduits by altering watershed flow from a parabolic flow pattern to a rotational flow pattern while still accommodating fish passage requirements. This change in flow pattern beneficially provides turbulence that disrupts and flushes debris out of the subsurface watershed conduits. This disruption and flushing establishes a passive cleaning functionality within the subsurface watershed conduits that serves to clean the subsurface watershed conduits after suitable upstream water delivery event (e.g., heavy rain, controlled water release, etc.). In doing so, these fluid flow enhancing devices overcome one or more shortcomings associated with subsurface watershed conduits in a manner that overcomes drawbacks associated with conventional design and in-use considerations for such subsurface watershed conduits.

Individual four-sided shaped modules used in an assembly for underground storage of storm water and other fluid storage needs. Modules are assembled into a resultant four-sided tiling shape for maximized structural strength and material use efficiency. Internal four-sided shaped modules are assembled and encased by external four-sided shaped modules. Internal adjacent modules are in direct fluid communications with one another through a channel-less chamber. Internal four-sided shaped modules drain into four-sided shaped modules chamber where fluid is either stored or drained. Assemblies include various top and side pieces along with access ports for entry into said assembly.

A flexible greening system integrated with water into fertilizer includes a vegetation fixing assembly, a vegetation growth layer and a water supply assembly. The vegetation fixing assembly is configured to connect to a building. The vegetation growth layer is provided on the vegetation fixing assembly and is configured for planting of green vegetation. The vegetation growth layer includes a substrate layer for vegetation growth and a drainage layer provided below the substrate layer. The water supply assembly is configured to supply the water to the green vegetation, and is provided with a drainage pipe communicated with the drainage layer.

Protection of upland areas adjacent to a variety of water body shorelines from flooding events by combining modified drainage culverts with and hidden by natural ecosystem flood attenuation environments.

A method for managing the flow of water beneath a ground surface uses modules. Assemblies of such modules are disclosed. The modules include supports and a deck portion, and the supports are spaced apart and form multiple channels with a main section of the deck portion. The deck portion also includes at least one section extending from a main section.

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 porous pipe for use in offshore water intake and discharge systems is provided, which is able to strain and filter water directly within the water body along the length of the pipe. Features of the porous pipe can be designed to optimize performance and flow rates for the particular environment, including the pore distribution and diameter along the pipe, the wall thickness and materials along the pipe; and the placement of piezoelectric devices to vibrate the pipe wall to remove impinged debris from pores.