Rain Water Harvesting

I saw the simple method of collecting rain water and also a complicated one during the visitation to different neighbourhood area for the last two week. A community group in PJS area uses the normal piping to channel water collected from the roof top into a container on the ground level. It is conventional style that can be found in the village and rural area. Although simple in design, it is cheap and appropriate for area without much resources. Another system we visited in SS22 neighbourhood area was done with complete and separate piping system. The rain water is harvested and channelled to the herbal garden few hundred meters away. It comes with filtering feature to get rid of the tree leaf and waste particulate. The system is also used as a demonstration tool to educate general public on rain water harvesting. Whatever the system is, the function of collecting, storing and using the rain water efficiently is required.

Study shows that by collecting rain water for watering the plants and cleaning of floor, a household can save up to 35% of their monthly water bill. Although small in amount compared to other utilities cost, the saving is significant because water resources is getting precious now. Apart from that, storing run off from heavy down pour will also minimise the chances for flash floor in cemented urban area.

Making rain water harvesting a mandatory requirement for new housing project is no more a luxury but a neccisity. Well, afterall, it is predicted that in one day, fighting for water source might become one of the reasons of war between nations.