Sump Pump Installation & Replacement in Michigan

What a sump system is actually doing

Drain tile only relocates water to one point in the basement; the sump pump is what removes it from the house. The pit collects water from the perimeter drainage, a float switch triggers the pump once the water reaches a set level, and the pump forces it through a discharge line to daylight or a storm connection well away from the foundation. Any weak link in that chain — an undersized pit, a pump that can't keep up, or a discharge line that dumps water right back next to the wall — undermines everything upstream of it.

New installation versus straight replacement

A new sump system typically comes with a drain tile installation or a basement that has never had one: the pit is dug and sealed at the low point of the perimeter, connected to the incoming drain lines, and fitted with a pump sized to the expected water volume. A replacement is more common where the pit already exists and works — the job is swapping a failing or undersized pump, replacing a worn check valve, and confirming the discharge line still runs clear and freeze-protected.

Common failure symptoms

• Pump runs constantly without the water level dropping — check valve or capacity issue.
• Pump doesn't turn on despite a full pit — float switch or power failure.
• Water backs up around the discharge exit outside — frozen or blocked line.
• Motor runs but no water moves — impeller clog or pump failure.
• Loud grinding or short-cycling — pump nearing end of service life.

Sizing a pump correctly

Pump capacity is rated in gallons per hour at a given vertical lift, and the right size depends on how much water the drain tile can deliver during peak conditions — spring thaw and sustained heavy rain being the worst case for most Michigan basements, not an average dry-season day. A pump sized for typical conditions but not the worst case is the most common reason otherwise-good systems still flood once or twice a decade.