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With  our extensive experience in the field we have developed, manufacture and sell "plug and play” systems for the purification of rainwater from a rainwater tank. This units will purify harvested rooftop rainwater to potable water quality standard for any household or community. It is suited for a 5-6 person household in a multi-story house or for a small community with a centralized rainwater harvesting system.

Rainwater purification pressurised filtration unitRainwater purification pressurised filtration unitRainwater Purification package unit installedRainwater Purification package unit installed

The unit are preset and tested to 6 Bar in our factory and can be installed and connected by a good plumber and an electrician.
The system consists of:
• A rust proof stainless steel frame (1.2m x 0.65m x 0.9m) which can be easily transported and protects the whole system.
• A Silent Grundfoss multistage  booster pump set that will provide 40l – 50l of purified rainwater per minute at 3.5 to 5 bar. The pump is coupled to a Global Water Solutions’ 24 litre PressureWave® series pressure tank. The pressure tank increases the longevity of the pump and reduces the energy consumption of the system, which makes it perfect for solar installations. The design and construction of the PressureWave® pressure tank ensures that the system will operate reliably and efficiently for many years without the need to replace EPDM bladders or recharge the air in the cylinder.

The pump is controlled by a Global Water Solutions’ PumpWave® series electronic pump controller. The controller is designed to work in conjunction with the pressure tanks. The cut in pressure can be adjusted from 1.9 to of 3.5bar which is very useful when the system is used in multi-story buildings. The controller protects the pump from dry running when there is no water left in the tank, removing the need for a float switch.
• Our 4 stage water purification unit.
o Stage 1 and 2 filters the water and removes all suspended matter larger than 1 micron from the water.
o Stage 3 contains activated carbon and KDF process media. The activated carbon removes any residual color and odor that might be present in the water. The KDF process media safely reduce or remove chlorine, iron, hydrogen sulfide and heavy metals from the water, the internal media redox reaction also inhibits the growth of bacteria, algae, and fungi.
o Stage 4 sterilizes the water via a concentrated Ultraviolet within in a stainless tube. The Stainless steel UV light is sized to match the flow-rate. The UV water sterilizer effectively kill any algae, fungi, bacteria, viruses that remain in the water. It is thus a completely physical way to sterilize water and does not require any chemicals and generates no secondary pollution.

In order to eliminate the risk of accidentally pumping rainwater into the municipal supply, we recommend the installation of a a back-flow preventer valve and all ancillaries for installation - this is a legal requirement for a rainwater harvesting system.
The unit requires a 220V, 15 amp power supply to operate effectively

Buy a unit online here

On request we also design and develop larger package rainwater and water treatment systems for our clients. Many of our clients are based in remote areas that require a package "plug and play" water treatment solution. These units are either free-standing or built into container units for ease of transport and safety of operation.

Rainwater filtration and treatment unitCustom designed rainwater filtration and treatment unit

The package plant is designed built and tested in our factory before being shipped to our customer. All units are supplied with a detailed operation and maintenance manual.