Basements
Why does my sump pump run constantly?
Continuous cycling in dry weather usually means the discharge water is returning to the sump. If the discharge line releases close to the foundation, the pump is recirculating the same water — burying the line and running it to a proper outfall well away from the house frequently resolves it within a season.
In more detail
A pump releasing water a few feet from the foundation returns it to the ground next to the house, where it re-enters the backfill zone and comes back to the sump. The pump then cycles indefinitely, wearing out, while the foundation stays loaded with the same water going round.
The diagnostic is simple: if there has been no rain and the pump is still running, it is almost certainly pumping the same water repeatedly.
The other detail that matters is freezing. A discharge line that freezes shut during a cold snap has nowhere to send water when a thaw arrives, and the pump runs against a blocked line — a flooded basement with a working pump. Lines are laid below the depth where they hold standing water, with a termination that drains rather than retaining a plug at the outlet.
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