Deepen old well?
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Smooky
In the Trades
You would be better off to forget the old bored well and have a new drilled well installed or a gravel pack depending on what type of deep well is installed in your area.
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Thank you sir, I am thinking the same.
Smooky
In the Trades
A bored well is generally considered a shallow well not over 100 foot deep. A bored well is only in soil so if you hit bed rock you cannot go any deeper.
In areas where bed rock is fairly shallow a hole is drilled down through the soil to they hit bed rock. A casing is set from the surface and is pressed into the surface of the bed rock. Then a smaller bit is lowered down through the casing and a hole is drilled into the bed rock. The drinking water comes from the bed rock not from the soil area above the rock. Usually there is no casing or screen below the surface of the bed rock, just a hole in the rock.
In areas where the bed rock is very deep such as the coastal plane in eastern NC to install a deep well it is called a gravel pack. The driller may drill down through soil or very soft loose rock and never hit bed rock. In that case the bottom section will be a screened pipe and up near the top will be a solid pipe/casing. With this type of well the annular space on the outside of the screen is filled in with very course sand. The top 20 feet or more of the annular space where the pipe is solid/not screened is grouted with concrete. This type of well is referred to as a gravel pack because of the course sand. I always thought it should be called a sand pack but it is called a gravel pack.
Depending on where in the world you are located will determine on what type of well you would need or is best for your area. Find out what your neighbors have. Talk to drillers in your area etc.
In areas where bed rock is fairly shallow a hole is drilled down through the soil to they hit bed rock. A casing is set from the surface and is pressed into the surface of the bed rock. Then a smaller bit is lowered down through the casing and a hole is drilled into the bed rock. The drinking water comes from the bed rock not from the soil area above the rock. Usually there is no casing or screen below the surface of the bed rock, just a hole in the rock.
In areas where the bed rock is very deep such as the coastal plane in eastern NC to install a deep well it is called a gravel pack. The driller may drill down through soil or very soft loose rock and never hit bed rock. In that case the bottom section will be a screened pipe and up near the top will be a solid pipe/casing. With this type of well the annular space on the outside of the screen is filled in with very course sand. The top 20 feet or more of the annular space where the pipe is solid/not screened is grouted with concrete. This type of well is referred to as a gravel pack because of the course sand. I always thought it should be called a sand pack but it is called a gravel pack.
Depending on where in the world you are located will determine on what type of well you would need or is best for your area. Find out what your neighbors have. Talk to drillers in your area etc.
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