Even are you also facing water deficiency? And want to get rid of it. Or are you planning to drill a Borewell in your place, So, here you will get all the vital information related to Borewell. What is the cost of Borewell drilling? What forms of Submersible pumps are required? Cost of the submersible pump?
What is a borewell?
A borewell is basically a type of well of about 4.5 inches to 12 inches in diameter drilled into the crust of the earth. The borewells with a diameter of 4.5 inches to 5.5 inches are generally used for domestic purpose while the borewells of diameter 5.5 inches or above are used for commercial or industrial purpose.
A borewell is normally drilled within the region of loose soil in exhausting rock or in crystalline rock. High-quality of PVC pipes are used for Casing in borewells. However, the deepness of a borewell can differ from 150 feet to 1500 feet.
What is the distinction between a Borewell and a Tubewell?
A borewell is trained with casing pipe place solely up to the soil-rock boundary and this is often done commonly for shallow depths in exhausting rock or in crystalline rock.
However, in case of tube well, the casing pipes are placed up to the depth of the borewells, with perforation within the pipes in some level. Generally, the tube wells are drilled in the area of sand and gravel where the supply of water is far below the bottom level.
How can we find out the supply of water within the land?
The best thanks to verifying whether or not water is out there in your land are to the researcher that uses any of the geographical techniques adopted by a professional hydrogeologist.
By the service of knowledgeable Senior Surveyor’s crew for locating a most fitted site with the help of using the most recent computerized Sound Survey Systems, you can find out the best site to drill a borewell. Their findings are almost 90 percent correct.
What care should be done while drilling a borewell?
While drilling a borewell we insert pipes known as Casing pipes. It may be PVC/GI. This is often done to forestall the Surface water with Sand from getting into the borewell.
These Pipes square are mounted within the rock beneath the soil. Casing pipes measures of about 4 to 8 kilograms. A number of the contractors compromise with this casing pipe to scale back drilling cost. But it is highly discouraged by the experts.
As it will result in future issues like bore silting, muddy water. Filtering also can be done to forestall muddy water and for obtaining surface yield. Borewells should be closed so as to prevent something falls into it and blocks the borewell.
Pumps should install as early as possible to avoid bore silting and injury. Timely cleanup should be done to retain yield and quality of water.
High quality of Casing pipes with ISI mark on it is highly recommended by the experts with correct measurement and thickness for a good life of a borewell.
Why the borewell fails?
It has been found out, not all borewells yield water but the good news is most the borewells yield water.
All the locations indicated by a geology survey at their various locations are taken from the hindrance values that are much better than those obtained from the encompassing regions of the area surveyed, these locations contrarily have hindrance values indicative of large exhausting rock with fully no fractures or seepages of water among them.
Beneath the conditions of crystallization of volcanic rock, uncountable vesicles are formed, therefore making air pockets among the mass of exhausting rock, the resistively of those crystals stay in an exceedingly similar range as those of soft weather rock through the flowing of water is probably going.
Hence, just in case air pockets encountered, the decrement of yield within the boreholes is feasible. Therefore all results are taken from a posh natural system of heterogeneous nature. Hence, variations within the results cannot be altogether dominated out.
What forms of Pumps are utilized in Borewells?
Most frequently used pumps are Submersible pumps, Hand pumps, and mechanical device pumps i.e. Compressor pumps. All kinds of pumping systems from 0.25 H.P. Monoblocks to 50 H.P. Pressure boosters, Submersible pumps, Centrifugal jet, Monoblocks, rotary engine pumps, Borewell submersible, Hand pumps, mechanical device pumps, star Submersibles, Piston Pumps, etc. also can be used.
It highly depends upon the supply of water & the depth of borewell. Testing can be done for checking the discharge amount of water from the borewell. Skilled geologists do all the testing work and suggest the most appropriate pump for your borewell.
Is Borewell water pure for domestic use?
What if I tell the borewell water is purer than that of Fresh River or lake water! It will still be having salts, minerals and dissolved solids. Therefore it is advisable to check the borewell water before drinking number if you have got any doubts on its freshness.
What is the cost of drilling a Borewell?
Cost of drilling a Borewell depends upon a large number of factors that are Depth of borewell, the method used for drilling, the width of borewell, Casing pipes, etc.
However, I can tell you the average cost of digging Borewell:
- Up to the depth of 100 feet, the average cost is INR 60 to 70 per feet
- From 100 to 200 feet, the average cost is INR 80 to 100 per feet
- Above 200 feet, the average cost is more than INR 100 per feet.
However, the above cost does not include the costs due to other equipment.
By calculating all the expenses for borewell drilling, average costing of 200 feet borewell ranges between INR 70,000 to 80,000.
Which are the top 5 best Submersible pump brands in India and what do they cost for 1 HP?
Depending upon the quality, Horsepower, material and many other factors; the cost of Submersible pumps varies from approximately INR 5,000 to 20,000.
What is the equipment required for Borewell drilling?
• Bore pipes
• Cable wire
• Submersible motor pump
• Service wire
• Gate valves
• Starter box etc
What are the methods used for Digging Borewell?
The method of drilling a borewell depends upon the soil strata of that area. The most commonly used methods of digging a borewell are:
- Water Jetting: This method is highly used in case of shallow bores in the alluvial strata.
- Augur Drilling: This method is an alternative for the above-mentioned method; it is also used in shallow bores in alluvial strata.
- Calyx Drilling: This method is highly used in case of sallow borewells in both alluvial strata and hard rock.
- Percussion Drilling: This digging method is used for drilling deep bores in boulder strata conditions.
- Rotary Drilling: This is one of the most common methods used for drilling the deepest and the largest borewells in alluvial strata.
- Down the hole hammering Drilling: This method is also used for digging deep and large borewells but it is used in hard rock strata conditions.
How to calculate the Yield of Borewell Drilling?
The most common way to calculate the yield of a brand new borewell is in ‘inches’ measured by the free, unrestrained flow of water from a borewell over 90 degrees ‘V’ notch.
The basic principle is that the discharge is directly associated with the peak of the water level from the rock bottom of the V notch.
Based on bound equations and formulae, the peak ‘h’ in inches is converted to discharge rate in liters per hour.
Yield can be majorly termed as four categories:
- Low Yield: If the reading of V notch is equal to or less than 1 inches, than the Yield, is termed to be low.
- High Yield: If the reading of V notch is less than 2 inches, than the Yield is termed to be Average.
- High Yield: If the reading of V notch is less than 3 inches, than the Yield is termed to be high.
- Very High Yield: If the reading of V notch is above 3 inches, then the Yield is termed to be very high.
Borewells can generate high yields, just proper surveying of the place by Hydro geologist professional is required.
WATER IS PRECIOUS; CONSERVE IT FOR FUTURE AND DO NOT WASTE IT!