A rainhead (1) comprising: a tub member (3); an internal receptacle (8) in the tub member (3) having an internal wall (7) forming a weir spaced from an external wall (9) of the tub member (3); an inlet (4) arranged to direct water flowing from a gutter into the internal receptacle (8); and, a chute (11) between the internal wall (7) and the external wall (9), the chute (11) being arranged to receive water overflowing from the internal receptacle (8) to allow it to drain from the chute (11) through a chute outlet (13).

A water distribution pipe comprises an elbow formation along its length, an aperture-defining formation defining an aperture in a radially distal wall of the elbow formation along a radius of the curvature of the elbow, and an openable closure that is mounted or mountable to the aperture-defining formation and that closes the aperture.

A rain gathering and storing system includes a housing having a top-portion, a bottom-portion, an inner volume, a first-drain, and a second-drain, and a water proof liner configured to contain water within the inner volume of the housing. The bottom-portion may be sloped to direct the water to the second-drain. The water proof liner is able to be built-in to a form of the housing of the rain gathering and storing system which is configured for use in collecting the water. The water proof liner may be used for multiple applications with adaptable installation.

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.

Systems for water collection and recycling are described herein. A downspout having a downspout groove is vertically disposed on an exterior wall. Electrical wiring that is operatively connected to at least one electrical power generator is disposed along the downspout groove. The downspout and electrical power generator are supported by downspout brackets. The downspout is fluidly connected to a gutter and an outdoor water storage tank for collecting rain water. A water pump moves grey water from a shower tub drainage pipeline to a water path switch valve. A control switch directs the water path switch valve to divert the grey water to a toilet storage tank, an outdoor water storage tank, or a washing machine water tank.

A pivotable downspout extension system includes an adapter coupleable to a fixed-position downspout, an extension arm pivotally coupled to the adapter, the extension arm having a housing having counterweight apertures, counterweights configured to be received within the counterweight apertures, and a water channel extending from the housing, the water channel forming a pocket where the water channel joins the housing. The water channel remains substantially vertical until water weight exceeds the weight of the counterweights and causes the water channel to pivot and release water.

Disclosed herein is an elution device comprising one or more inlets and one or more outlets and defining an interior volume comprising steel slag, wherein the elution device is mounted to a support and situated substantially above ground level. One or more inlets and one or more outlets are disposed to facilitate fluid flow from an inlet toward an outlet to cause contact of the eluant with the slag for a period sufficient to form an eluate. Also disclosed herein are methods of applying an eluant to the elution device and dispensing an eluate from an outlet proximal to a distressed water source to form a treated water source. Also disclosed herein are methods of applying an eluant to the elution device and dispensing an eluate from an outlet proximal to one or more areas having living plants thereon or therein.

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).

A pivotable downspout extension system includes an adapter coupleable to a fixed-position downspout, an extension arm pivotally coupled to the adapter, the extension arm having a housing having counterweight apertures, counterweights configured to be received within the counterweight apertures, and a water channel extending from the housing, the water channel forming a pocket where the water channel joins the housing. The water channel remains substantially vertical until water weight exceeds the weight of the counterweights and causes the water channel to pivot and release water.

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.