SMK (P) Sri Aman's Rainwater Harvesting.

SMK (P) Sri Aman's Rainwater Harvesting 2009 Team consist of 7 members. This club is supervised by Pn. Nor Hafizah binti Amran,the club's adviser. The president is Nursyazwana Izzati. The secretary is Nur Syafeeqah,and the leader for activity is Nur Shahirah. The other AJKs are Nur Fatini,Iqffa Nadia,Izzah Athirah and Rohathira.

Introduction to Rainwater Harvesting...

Hello,do you all know what is Rainwater Harvesting actually is??? Let me tell you about it.

Rainwater harvesting is the gathering, or accumulating and storing, of rainwater.
Traditionally, rainwater harvesting has been practiced in areas where water exists in plenty, and has provided drinking water, domestic water, water for livestock, water for small / Little irrigation and a way to increase ground water levels.

There are many types of systems to harvest rainwater. Not able systems are systems for runoff rainwater (eg hillside run-off) and rooftop rainwater harvesting systems. The type used depends greatly on the purpose (domestic or industrial use) and to some extent also on economics and physical and human considerations. Generally speaking, rooftop rainwater systems are most used as they are most economical (if there is more than 254 mm of precipitation a year)

At the moment, 2 types of systems are generally used. These include DIY and commercial systems. Both of these systems are known under the term water harvesters and require only a limited amount of knowledge to set up (if basic systems are used). In both cases, the system consists of a storage tank to store the water and piping (to guide the water in). Additionally, extra pressuring equipment as pressure vessels, inline pump controllers or pressure sensitive pumps may also be required.Finally, water purifying equipment as water-purifying plants, UV-lights or distillation equipment are sometimes (depending on local conditions ) added to purify the collected water. The system is then called a Greywater treatment system. Greywater systems are usually preferred over regular water harvesters as they allow the system to not only treat the rainwater, but water from other sources as well (eg the watercloset; if plants are used). However, this feature may also be averted by using a UV-lamp and composting toilet instead.
Depending on local circumstances, a gravity-fed system may already be enough to have a pressured water collection system. In the latter case, no pumps/pressure vessels are thus required to have a pressured system. In practice, gravity-controlled systems are usually created by placing the water harvester on an elevation (eg rooftops).

DIY Domestic System

As water conservation is becoming more and more popular, more people have begun to make their own homebrew installation. These systems range from traditional technologies like rain barrels to more complex greywater systems. Through the Internet, plans and accurate construction information have become available. Depending on the degree of personal skill and preference, a more basic (regular water tank and piping) -or more advanced (e.g. pressured systems with water treatment, etc.) system is chosen.

Commercial domestic systems

Commercial systems are also made. They are offered by a variety of companies ... Commercial rain harvesters can be obtained in both pressurized as gravity-fed systems Greywater treatment systems are sold by companies as Water Works UK, Nubian Water Systems, BRAC Systems, ... Again, they are available in pressurised as gravity-fed system.

Photos of Rainwater Harvesting...