CPM has developed a sustainable water collection, storage and supply system to help reduce the demand for mains water from domestic and commercial buildings.

The Oasis rainwater and greywater harvesting system is just one product in a complete package of storm attenuation solutions provided by the CPM Group.

The CPM greywater system uses ultra filtration membrane ISB technology, to treat bath, shower and hand basin waste water which is then used to flush toilets and can be used for watering the garden. Approximately 70 litres of drinking water and 44 litres of waste water can be saved per person per day in domestic households and significantly more in hotels.

This system is also available as a combined rainwater harvesting and greywater recycling system. This is especially efficient where peak demand such as garden irrigation is planned.

The Oasis greywater recycling system is manufactured in conjunction with Aquality Trading & Consulting Ltd. Aquality are a solutions company that aims for water efficiency (reduction of the use of potable water) though the use of the latest technology for projects ranging from small domestic to large industrial systems e.g. stadiums and airports.

The system can also be used for industrial, commercial and hotel applications. The treatment process for a larger facility is divided into four steps: pre-treatment, aerobic treatment, membrane filtration and clear water storage.

The system treats the water to a quality which complies with the standard of the EU-guideline for bathing water.

Greywater systems do not depend on rainfall but rainwater systems have the advantage that they reduce flooding by keeping the water on site and can catch a lot of water in a short time. That means a well designed system can cope much better with high demand applications with irregular use such as garden irrigation.

Combining the two technologies not only adds the positive aspects of each system but also reduces cost.

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