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Rainwater-Shop supplies the widest single range of rainwater harvesting filters and components.
In fact, we supply everything for a RWH system but not the underground tank.
All backed by our class leading service, technical advice and after sales support systems.
Rainwater-Shop means continuous innovation. Every year sees new developments. We have been developing and manufacturing rainwater harvesting products since 1990.
With good planning and the right components a rainwater system can be largely maintenance free. The rainwater quality is ideal for many uses in both the home and the workplace.
A professional system will use a 4 cleaning step system:
1. Step: Filter The first cleaning step in the rainwater system is the filter. The rainwater flows from the roof to the filter. Here dirt particles and debris are separated from the water. The cleaned water flows to the tank. The dirt is washed to waste or soakaway. There are many different filters, suitable for different roof areas, with various working principles and connection possibilities to allow for their use in many different installation situations.
2. Step: Calmed Inlet By using an underground tank, the water is stored in dark and cool conditions. The second cleaning step takes place at the bottom of the storage tank. Any fine particles in the stored water settle to the bottom of the tank. The rainwater Calmed Inlet prevents any disturbance of this sedimentation layer. At the same time the Calmed Inlet ensures that oxygenated water is introduced to the lower layers of the stored water in the tank.This oxygen rich water prevents anaerobic bacteria colonising in the storage tank - ensuring that the water stays fresh.
3. Step: Overflow Siphon Any particles that are lighter than water (e.g. flower pollen) float slowly to the water surface. Well designed Overflow Siphons, with a skimming effect, removes any floating particles. Regular overflow from the storage tank is important to get the optimum water quality. It prevents souring of the water. The floating layer could otherwise build up over time, and so reduce oxygen diffusion at the water surface, which in turn could lead to anaerobic reducing conditions in the tank.
4. Step: Floating Pump Intake The Pump Intake floats at all times, suspended just below the water surface where the cleanest water lies. From this position the cleanest water is extracted by the pump. A ball float, filled with air, suspends the intake, which has a further filter and a check valve to prevent backflow of water into the tank.
For further information or if you would like a quotation please send us your request using the contact form.
We will respond as soon as possible and prepare your offer.