A drainage system, comprising a collector which is arranged to collect liquid and a drainage pipe having a pipe inlet that opens into the collector such that liquid collected by the collector drains through the pipe inlet. The drainage pipe is provided with a vent spaced away from the pipe inlet. The vent is arranged such that, when liquid collected by the collector occludes the pipe inlet, liquid flowing through the drainage pipe draws air into the drainage pipe through the vent.

A drainage system, comprising a collector which is arranged to collect liquid and a drainage pipe having a pipe inlet that opens into the collector such that liquid collected by the collector drains through the pipe inlet. The drainage pipe is provided with a vent spaced away from the pipe inlet. The vent is arranged such that, when liquid collected by the collector occludes the pipe inlet, liquid flowing through the drainage pipe draws air into the drainage pipe through the vent.

Buildings which include rudimentary plumbing can be transported as a set of disassembled modular parts and then assembled on site. The assembled building includes a water reservoir in the roof and a sewage reservoir in the base, so as to enable gravity-based water supply and sewage disposal in the absence of traditional plumbing and sewage infrastructure. Building envelope elements having internal reservoirs, and methods for constructing such building envelope elements are also described.

A rainwater conveyance system for managing water flowing through a conveyance line having a first portion located above ground and a second portion located underground and adjacent to a percolation region. The rainwater conveyance system comprises a drain emitter comprising an emitter inlet and an emitter outlet. The emitter inlet is connected to the conveyance line such that the collected water flows into the drain emitter and a drained portion of the collected water flows from the second portion of the conveyance line and through the emitter outlet at a preset emitter flow rate. The drain emitter is arranged such that the drained portion of the standing water flows to the percolation region. The preset emitter flow rate is predetermined such that the drained portion of the collected water flows out of the conveyance line and percolates through the percolation region.

Apparatus and associated methods relate to a greywater capture and control system. In an illustrative example, the greywater capture and control system may, for example, include an ingress pumping module having a suction line. The suction line may, for example, fluidly couple a pump inlet to an existing drain port of a water dispensing appliance. The ingress pumping module may, for example, be configured such that, in response to flow accumulation in the drain port, the ingress pumping module automatically applies negative pressure to the drain port to divert the outflow of the drain port from existing drain plumbing to a greywater reservoir. Various embodiments may advantageously provide a distributed network of local, modular greywater monitoring and control systems.

A diverter for a rain barrel includes a scoop portion configured to fit within a gutter downspout, a rain barrel fitting portion configured to fluidly attach the scoop portion to the rain barrel, and a wing extending outwardly from the scoop portion to direct a flow of water in the gutter downspout towards the scoop portion.

According to one aspect of the present disclosure, a plumbing drain assembly is disclosed which includes a plumbing outlet box, a Y connector, and an air intake valve. The plumbing outlet box has a back wall and four sidewalls that extend outward from the back wall to form a cavity. The Y connector includes a first and second drain channels. The first drain channel is mounted in the cavity and has opposing first and second ends. The second drain channel merges with the first drain channel between the first and second ends. The air intake valve is mounted to the first end of the first drain channel, and is configured to allow exterior air to enter into the first drain channel through the first end, and prevent internal air from exiting the first drain channel through the first end.

Apparatus and associated methods relate to a greywater capture and control system. In an illustrative example, the greywater capture and control system may, for example, include an ingress pumping module having a suction line. The suction line may, for example, fluidly couple a pump inlet to an existing drain port of a water dispensing appliance. The ingress pumping module may, for example, be configured such that, in response to flow accumulation in the drain port, the ingress pumping module automatically applies negative pressure to the drain port to divert the outflow of the drain port from existing drain plumbing to a greywater reservoir. Various embodiments may advantageously provide a distributed network of local, modular greywater monitoring and control systems.

The present invention discloses a rainwater harvesting system that utilizes a removable rainwater separation box, support plate, and stop assemblies to introduce rainwater through a first channel of the upper cylinder body, separate clean rainwater through a second channel and outlet hole, and discharge it through an outlet pipe.

An insert (400) for a rainwater downpipe (300) is fluidly coupled between a first section (310) and a second section (320) of the rainwater downpipe (300). A rainwater reservoir (500) is defined within the insert (400) to store the rainwater received from the first section (310) therein. The rainwater reservoir (500) includes a side surface (510), a bottom surface (520) and an outlet opening (522) fluidly coupled to the second section (320). A valve element (530) is disposed within the rainwater reservoir (500) to allow or deny the passage of the stored rainwater in the rainwater reservoir (500) through the outlet opening (522). The insert (400) is characterized in that the side surface (510) of the rainwater reservoir (500) further defines a rainwater harvesting opening (549) adapted to allow access to the rainwater stored in the rainwater reservoir (500).