Good plumbing and rainwater harvesting
By Aileen Qaiser
THE society which scorns excellence in plumbing because plumbing is a humble activity, and tolerates shoddiness in philosophy because philosophy is an exalted activity, will have neither good plumbing nor good philosophy. Neither its pipes nor its theories will hold water. —John W. Gardner
It is not surprising that numerous complaints and criticisms have surfaced about the newly installed water filtration plants, some 6,000 of which are said to have been recently installed all over the country, including the twin cities of Islamabad and Rawalpindi, as part of an ambitious Rs7.8 billion “safe drinking water for all” project.
These complaints and criticisms have come from both members of the public as well as government agencies like the Pakistan Council for Research in Water Resources and more recently, the Water and Sanitation Agency in Rawalpindi.
That the water filtration plants project was a non-starter was a foregone conclusion. Firstly, ‘water filtration plant’ is something of a misnomer: it is no more than a public water tap station, where citizens have to queue up for water with containers in hand, at the expense of sleep, office and other work. In this modern era where every household expects clean potable water to flow directly from their taps on demand, no government in any developed country can sell a ‘safe drinking water for all’ campaign merely through the provision of such public water tap stations.
The second reason why the project was a non-starter is that it was implemented as a separate one-time installation project through funds provided to MNAs and MPAs, not as part of a permanent integrated national water strategy executed by the respective water agencies in the localities under the ministry of water and power to ensure an adequate, clean and sustainable supply of water to all consumers. The result is that the maintenance of these filtration plants is in limbo with the local governments and water agencies passing the buck to each other.
In any case, the philosophy of providing safe water for all through filtration plants simply does not hold water. Filtration plants cannot take the place of an efficient supply distribution network that provides clean water to all consumer taps. However, good plumbing alone is not enough to ensure the flow of safe water: the pipes must be fed by a sustainable water resource.
Thus, a viable strategy to ensure the provision of safe drinking water for all would have to comprise two vital courses of action: firstly, major improvements in the infrastructure of the distribution network to minimise contamination specially from sewage and industrial effluents and from increased salinity resulting from over exploitation of the ground water; and secondly, major improvements in the infrastructure for water collection and storage.
In Pakistan where the evaporation rate in rivers, lakes, reservoirs and dams is high, particularly in the summers when the water level in lakes and dams drops and many household taps run dry, the more effective method of water storage in most parts of the country is underground. But the underground water resources are fast depleting because of over exploitation and the unrestricted use of tubewells. Moreover, increasing urbanisation has considerably reduced the area of exposed earth for rainwater to naturally seep in and recharge the ground aquifer.
According to a Dawn report last week, the Dutch government might be providing a grant to Wasa to help recharge the aquifer in the Rawalpindi region and improve the ground water level. Such a measure, however, ought to be part of a national water strategy to encourage rainwater harvesting and the artificial recharge of groundwater. At the moment, much of the rainwater that falls in the urban areas, e.g. on rooftops, road surfaces, etc., is wasted as it flows into drains and into sewerage systems, or it is simply evaporated.
Our neighbour India recognised the importance of its ground water resource when it instituted the Central Ground Water Authority under the ministry of water resources to regulate, manage and control the development of its ground water resources. One of the first things which CGWA did was to prepare a master plan identifying areas for artificial recharge, a plan which envisaged the establishment of a network of structures for artificial recharge and water conservation.
In accordance with CGWA’s plan, housing societies and schemes, institutions, schools, hotels, industrial establishments and farm houses have been directed to adopt rooftop rainwater harvesting systems. Building by-laws have been modified to incorporate mandatory provision of rooftop rainwater harvesting in all new structures, e.g., no water or sewerage connection would be given if a new building does not have provisions for rainwater harvesting. The various ministries in India have also been asked to lead the way in promoting rainwater harvesting by adopting roof top rain harvesting systems in their buildings. CGWA also launched a widespread awareness campaign to propagate ground water conservation measures to the masses.
In Pakistan, as it is the case in many other countries, pollution and over exploitation have shrunk the availability of clean and potable water. Thus, making use of each and every drop of rainwater to recharge the groundwater is not only an environmental-friendly method of increasing water availability, it also checks the depleting ground water resources.
If our cities, towns and builders can be similarly guided to adopt suitable rainwater harvesting methods in houses and buildings, the precious rainwater can be collected on rooftops and other surfaces, and the water directed to lawns, gardens, parks and other open soil surface areas where it can percolate and replenish the groundwater aquifer. The collected water can also be carried down to where it can be used immediately or stored underground (for car and floor washing, lawn/garden watering, industrial usage, etc).
In these times of scarce and fast depleting water resources, every drop of rain water that we can save and conserve counts. Needless to add, a campaign to promote rain water harvesting must also be accompanied by public education to cultivate frugality in the use of water.


