I drilled 6" bore well at CV Raman Nagar Bangalore to a depth of 799ft and I got water at 790ft of 4" (V-notch reading) and driller could not continue the drilling process since water pressure was high. After two days of drilling, at time of installing the pump we came to know that bore well was filled with silt up to 400ft from the bottom. As per advise of one of the expert in this field we flushed the bore well once again after one day we tried to install the pump again but we could not do so because again bore well was filled with silt and we could pump out the water that remained in the tube. Presently the bore is abandoned.
My questions are -
1. Is there any method so that we can revive the bore well?
2. If water source itself contains silt whether slotted casing pipe will help and how?
3. Is there of changes that again the bore well may get filled with silt even after reviving this bore well by any method?
4.Since the yield of the bore well is so much that it is tempting us to spend little more money for the reviving but is it worth is all my question is?
R Prakash
prakash@august.in