Rainwater harvesting is collecting rain water directly, or from the run-off from a structure or other impervious surface in order to store it for later use. Traditionally, this involves harvesting the rain from a roof. The rain will collect in gutters that channel the water into downspouts and then into some sort of storage vessel. Rainwater collection systems can be as simple as collecting rain in a rain barrel or as elaborate as harvesting rainwater into large cisterns to supply your entire household demand.
Planning | Collection | Transfer | Storage | Treatment
A Resource base containing these Publications:
Rainwater Harvesting, Water Management, Drinking Water Quality, “What is the Fate of your Rainfall” Education Guide
A sample manual intended to assist contractors, consultants, individual land owners, and others in planning rainwater harvesting (RWH) systems.
Allows you to calculate the amount of water you could capture from a roof. This will help you size your rain barrels, cisterns or other rainwater capturing devices.
Conical and an inverted umbrella-shaped catchment device extends the surface area to collect rainwater. Can be funnelled directly into a container or connect multiple saucers for greater coverage.
With a shunt attachment, you can pipe rainwater directly from the downspout of a gutter system. Plus, the protective back flow design means the water will prevent overfilling and go down your gutter if the collection barrel is already full.
A line of water containers that are easy to disconnect and use. This option is best for people who have defined gouges in their roof, without gutters, so that the water pours straight into the trough.
With slanted roofs on two sides, water slides into the water container, travelling through the ridges on the roof and streamlined into the center area for collection.
With a shunt attachment, you can pipe rainwater directly from the downspout of a gutter system. Plus, the protective back flow design means the water will prevent overfilling and go down your gutter if the collection barrel is already full.
A line of water containers that are easy to disconnect and use. This option is best for people who have defined gouges in their roof, without gutters, so that the water pours straight into the trough.
Note:
Specially designed, with a food-grade interior and UV-stabilized black or dark green exterior that prevents algal growth in the tank by blocking sunlight.
Sturdy plastic barrels with a fitted lid. It can be fitted with a tap for drawing the water.
Large-sized bins with a lid and built in wheels can be easily converted into portable rain water storage. When one bin is full, you can wheel it away and keep another one to catch the water. That way, you can store water at different areas for spot use.
You can bury your water storage barrels and tanks and keep them out of sight and out of mind. Add a water pump for easy access.
Use of a water bladder to hold water in tight spaces. Can be easily kept out of sight.
This is a rainwater tank made up of pipes stacked to form a fence. The idea is that instead of a water tank taking up space in your backyard, it can form the boundary of the property and also save the cost of a fence.
In-ground open ponds include practically unlimited storage capacity, lower expense, and aesthetics. A 2.4m(6ft) x 1.2m(4ft) pond with 60cm(2ft) depth can store over 1200Liters (300 gallons). Digging it deeper by another 30cm will triple the capacity. Add a water pump to wash cars or irrigate plants.
Building a rain garden system removes the requirement of installing a barrel, transferring the water and all the intermediate steps that consume both time and energy. This system directly irrigates the garden and is a gardener’s delight.
The rain barrel water harvesting system is easy and you can start harvesting water in just four steps. Connecting a rain barrel system to the rainwater drainage pipes is an efficient way of collecting rainwater.
How to collect rain water when living in an apartment for gardening purposes.