Not an expert buy any stretch but my well driller explained to me how my well went bad...it was about 50-60 years old...as the water migrates towards the well it brings any and all silt minerals whatever with it...eventually it stops flowing and plugs around the well...
He drilled a new hole only about 20 feet away which was very concerning to spend 10 k an I was thinking I had a dry well right there...
We hit great water initial pump down was 115 gpm...he said it would gain some more gpm after a little use...the new well doesn't have near as much lime as the old well did...