Whatever your questions about rain water harvesting especially related to bore well recharge you can find out more here.
What is bore well recharge?
It is a method to send harvested rain water to the area surrounding the bore well and using the shaft of the bore well to act as a channel to take the rain water into the underlying aquifer. Therefore uses the aquifer as an underground storage ‘tank’ for your rain water harvesting.
For a more indepth explanation click here.
How much area is required for the recharge pond?
It depends on the area but for rural implementation, the minimum area is 8 metre by 4 metre with a depth of 3 metres. In Housing Societies we use an infiltration well which requires a smaller area – 1 metre by 1 metre – depth 2 metres. This can also be covered so that parking or a garden can be placed on top of it.
Can you use my rooftop rainwater?
The equation used to calculate the amount of run off from a rooftop is as follows:
For example in Mumbai:
The Mumbai District area receives an avg rainfall of 1800 mm. The formula is:
Volume in litres = avg rainfall in mm X area in sq mts
If the roof area is approx 2,500 sqm – therefore av rainfall – 1800 mm x 2,500 sqm = 45,00,000 – considering 80% efficiency you could expect 36,00,000 litres would be sent to your subsoil and ground water tables every year.
Can I recharge my open well?
This is difficult because during the rainy season the open well is full so we cannot direct more water to that well. The well is much more shallow than the bore well and is not connected to the level of aquifer that bore well recharge addresses.
How much does it cost to recharge my dried up bore well?
The investment in recharging your bore well is dependent on many factors. For rural situation it can be between Rs30,000 to Rs50,000 dependent on the availability of supplies such as sand, stones etc. Industrial and Urban recharge systems cost is also dependent on the individual set up. Our methods however are very cost effective and we can visit your organisation or farm and give you an estimate. (for industrial and urban quotations we do charge a minimal consultation fee for the quote).
Can you come to my farm to advise me on my options?
We are every happy to visit your farm and give advice on your requirements. However if you wish a representative to visit it we are unable to come for individual farmers. We suggest you organise a group of interested farmers in your area and we will be more than happy to present our solutions to you for your water needs.
Do you charge me – the farmer – for implementing bore well recharge on my bore well?
Yes – we ask you to pay 50% of the cost of the recharge system. This can be in the form of materials and/or labour.
How long does the work take to complete?
It will take 2 – 3 days to complete the work – depending on availability of materials, labour and JCB hire.
When can I expect to see results?
Provided there is enough rain to refill the feeder pond 3-4 times during the rainy season you can see results almost immediately. Once the rains have stopped you will be able to see the increase in water supply from your bore well.
How much maintenance is required annually?
Very little maintenance is required. Making sure the mesh around the shaft of the bore well is clean and well secured, keeping any rubbish of stones out of the cement ring area around the bore well casing, and ensuring weeds and other material is not growing around the filtration stones around the cement ring area. The pond may need de-silting before the rainy season if it has collected mud during the past rainy season.
How can I receive more information?
Please fill in the enquiry form below or telephone us on +91 99868 40730.