Sump Pump Replacement

Measure the inflow before choosing a pump

The useful number is not on the old pump’s label. It is how fast your pit fills.

Empty the pit, then time how long it takes the water to rise back to the switch level, ideally during a wet spell when the ground is loaded. That gives the inflow rate the new pump has to exceed comfortably.

Going bigger without checking has its own cost. An oversized pump in a small pit empties it almost instantly, shuts off, and starts again a moment later. That short-cycling is harder on the switch and the motor than steady running, and it shortens the life of the unit you paid more for.

The right pump is the one matched to the pit, which is rarely the biggest one available.

Replace before it fails, not after

Sump pumps are unusual in that failure and need coincide exactly.

They run hardest during sustained heavy rain, which is precisely when the basement depends on them. A pump at the end of its life will not fail on a dry Tuesday; it will fail on the night it is needed most.

So the sensible approach is age-based rather than symptom-based. Seven to ten years is a normal life, and much less for a pump that cycles constantly.

If yours is in that range and runs often, replacing it on a dry day is a planned, inexpensive job. Replacing it after failure usually involves a wet basement first.