Infrastructure management in any two cities is never the same, and Rain Water Harvesting (RWH) is one such measure that has different guidelines in every city. The RWH guidelines in Hyderabad are understandably entirely different from those in Bangalore.
To understand the guidelines better, you’ll need to grow familiar the concept of rain water harvesting and the reasons behind the same.
Why Rain Water Harvesting?
Rain water is one of the purest forms of water that is majorly deemed fit for human consumption and use worldwide. Gathering rain water and using the same can help in tackling the demand for fresh water and the practice can also help in preventing floods. Some advantages of rain water harvesting include:
This process will help in recharging water aquifers
- The quality of ground water can be significantly improved
- Soil erosion can be reduced when excess rain water is tapped and stored
- Water logging can be prevented and this will help in negating mosquito related problems
- Water shortage issues that crop up in cities like Hyderabad during the summer can be tackled
- Power consumption can be reduced as the process of pumping water can be made rare
RWH Guidelines in Hyderabad City
Guidelines for rain water harvesting were enforced in Hyderabad in the year 2001.
- The owner or occupier of a particular building, which stands on an area of more than 300 square meters, should install a rainwater investing system.
- It is mandatory to install RWH systems in commercial complexes and housing societies.
- Trenches and percolation pits should be installed around every building in Hyderabad these can have a dimension of 1.2 x 1.2 x 2.5 meters. The trenches can have a depth of 2 meters, a width of 0.6 meters and a length of around 2 to 6 meters.
- Terrace water can be sent directly to these trenches and pits, and they need to mandatorily have filter materials. A brick wall should be constructed near these trenches and pits, with an ideal depth so that loose soil does not mix with the rain water that’s collected.
- Concrete slabs that are well perforated should be provided over these trenches and pits. Fine sand and coarse sand should be used in two layers in these trenches and pits.
- PVC pipes can be used to connect the terrace to the sump so that the rain water that’s collected can be channeled down to the sump.
- Rain water harvesting experts should be consulted to build a value system, which will directly discharge the first batch of rain water that’s collected (as it is bound to be dirty due to its interaction with dust on the terrace floor). The secondary batches will them be stored in the sump.
- Filtering tanks need to be constructed near the sumps in order to purify the water, and these should have two layers – one layer of coarse sand and another layer of fine sand. This filtering tank should have a dimension of 1 x 1 x 1 meters. The tank should have a sloping base so that water doesn’t get accumulated by any chance.
You can check if the rain water harvesting system in your housing society follows these guidelines and bring up any missing features during resident meetings.
This article aims at collating and providing information for benefit of ApnaComplex customers and blog readers. While ApnaComplex has taken every care to ensure the information is accurate, we suggest to please use it only as a guidance for further discussion and action with help of relevant professionals. If you need professional advise on this topic and any other property related matters, please send your request through our contact us form. You may post your questions/inputs in the Comments section below and we will try and get them answered through relevant subject matter experts.
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