Iron content of the water has increased after flushing the borewell in Chennai- Can we add chlorine or alum directly to the bore?

Hi,

I am Umashankar from Chennai. I have a problem of high iron content in the borewell, but some of my neighbours (within 50 - 100 metres), don't have this problem.

Is there anyway to find the location of the water table within my plot which is less in iron content. I have installed an iron removal plant. The results are not that great, which still presents iron content which turns the water into yellow colour. I have flushed the bore a week before, but the condition has become still worse with more iron content.

Is it advisable to add chlorine or alum directly to the bore for rapid sedimentation and clearance?

Kindly suggest

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