Low water and dry wells
Texas A&M AgriLife Extension warns that if the water level falls below the pump intake during drought, the pump can be damaged.
When the well runs low
Texas A&M AgriLife Extension advises turning the pump off if it cycles on and off rapidly, and reducing pumping or lowering the pump if the level does not recover.
Texas A&M AgriLife Extension lists sand in the toilet tank and milky tap water that clears after a short time as signs a well may be going dry.
Texas A&M AgriLife Extension says lowering the pump may be possible depending on well depth, and the job needs a licensed pump installer.
Texas A&M AgriLife Extension says falling water levels let air into the aquifer, so a well with some arsenic should expect higher levels during a drought; test during and after.
For a low yielding well, Texas A&M AgriLife Extension suggests adding a pumped water storage tank to cover peak demand.
Texas A&M AgriLife Extension suggests neighbors stagger heavy use like laundry so wells can recover, and conserving water during drought.
The Minnesota Department of Health lists a higher electric bill from the pump running longer, lower pressure, sputtering taps and muddy water as signs a well may be going dry.
Sources: Low water can wreck the pump; Higher power bill is a sign
Common questions
What do I do if my well runs dry?
Texas A&M AgriLife Extension warns that if the water level falls below the pump intake during drought, the pump can be damaged.