www.rwh.in

<body><script type="text/javascript" src="http://hb.lycos.com/hb.js"></script> <script type="text/javascript" src="http://ratings.lycos.com/ratings/lycosRating.js.php"></script> <script type="text/javascript"><![CDATA[//><!]]></script> <script type="text/javascript" src="http://scripts.lycos.com/catman/init.js"></script> <script type="text/javascript" src="http://members.tripod.com/adm/ad/code-start.js"></script> <script type="text/javascript" src="http://members.tripod.com/adm/ad/code-middle.js"></script> <script type="text/javascript" src="http://members.tripod.com/adm/ad/code-end.js"></script> <noscript> <img src="http://members.tripod.com/adm/img/common/ot_noscript.gif?rand=779097" alt="" width="1" height="1" />  <iframe frameborder="0" marginwidth="0" marginheight="0" scrolling="no" width="728" height="90" src="http://ad.yieldmanager.com/st?ad_type=iframe&ad_size=728x90&section=209094"></iframe>  </noscript> <p align="center"><font color="#8080FF" size="3" face="Arial"><strong>What is rainwater harvesting?</strong></font></p> <p align="left"><font color="#000080" face="Arial">Roof top rainwater harvesting is rainwater that is captured from the roofs of buildings on residential property. Harvested rainwater can be used for indoor needs at a residence, irrigation, or both, in whole or in part.</font></p> <p align="left"><font face="Arial"><font color="#000080">Rainwater harvesting is defined as a method for inducing, collecting, storing and conserving local surface runoff for recharging surface water bodies and ground water, irrigation purpose and reducing soil moisture deficit (SMD).<br> </font><font color="#000080" size="1"><br> </font><font color="#000080" size="3">Rainwater conservation has four phases. The four phases are:<br> i) </font><font color="#000080">Rainfall induces surface flow on the runoff area.<br> ii) At the lower end of the slope, runoff collects in the basin area,<br> iii) The major portion water collected infiltrates and is stored in the root zone of the soil.<br> iv) After infiltration has ceased, then follows the conservation of the stored soil water.</font></font></p> <p align="center"><font color="#8080FF" size="3" face="Arial"><strong>Why rainwater harvesting?</strong></font></p> <p align="left"><font color="#000080" face="Arial">Fresh water is a limited and precious resource that is often taken for granted. While many areas of the developing world lack supplies of safe drinking water. Water shall be a major issue for the 21st century and water resources a real source of international & interstate conflict. </font></p> <p align="left"><font color="#000080" face="Arial">In most part of the continent, extraction of water from rivers and underground aquifers is causing severe environmental problems. In addition rainwater run-off during rainfall from roofs and other sealed surfaces during heavy rain can lead to accumulated flooding in high-risk areas. The protection of freshwater resources must therefore be improved world-wide to ensure that drinking water does not become a luxury product.</font></p> <p align="left"><font color="#000080" face="Arial">Water is essential to all life - human, animal and vegetation. It is therefore important that adequate supplies of water be developed to sustain such life. Development of water supplies should, however, be undertaken in such a way as to preserve the hydrological balance and the biological functions of all ecosystems.</font></p> <p align="left"><font color="#000080" face="Arial">The development of water sources must be within the capacity of nature to replenish and to sustain. If this is not done, costly mistakes can occur with serious consequences. The application of innovative technologies and the improvement of indigenous ones should therefore include management of the water sources to ensure sustainability and to safeguard the sources against pollution. There is now increasing interest in the low cost alternative-generally referred to as 'rain water harvesting'.</font></p> <p align="center"><font color="#8080FF" size="3" face="Arial"><strong>Resources: <a href="http://www.harvestingwater.com/">Click here</a></strong></font></p> <p align="left"><font face="Arial"><font color="#000080">In my opinion, the best source guides on rainwater harvesting are:<br> </font><font color="#0080FF" size="5"><strong>ť</strong></font><font color="#000000"> RWH guide by Texas Water Development Board , </font><font color="#0080FF" size="5"><strong>ť </strong></font>Domestic Roofwater Harvesting Programme<font color="#000000"><br> </font><font color="#0080FF" size="5"><strong>ť </strong></font></font><font face="Arial" size="3">Rainwater harvesting Case Study</font><font face="Arial"><font size="3"> </font><font color="#0080FF" size="5"><strong>ť</strong></font><font color="#000000"> Rainwater Harvesting & Treatment</font></font></p> <div align="center"><center><table border="0" width="75%"> <tr> <td><p align="center"><font face="Arial" color="#0080C0" size="3"><strong><br> </strong></font><font face="Arial">Last edited on September 26, 2006.</font></td> </tr> </table> </center></div><p> </p> </body>