Sump and Sewage Pump Repair

Submersible pumps vary in size and capacity depending on the conditions, required GPM discharge, head/lift condition, as well as friction losses from distance of piping, valves and fittings. Proper sizing is most important. Some submersible pumps are automatic incorporating a float switch built into the pump itself, larger systems usually relay on a control panel and float switches to operate one or more pumps.

Pump Types

Submersible pumps consist of both sump pumps and sewage pumps. Sump pumps and sewage pumps can be used in a number of other applications as well such as well pumps, fountain pumps.

How Sump Pumps work

Sump pumps and sewage pumps work by protecting their motors from the liquid being pumped. Usually, the motors are placed in water tight compartment filled with air or oil. Most motors used in submersible pumps are electric.


Sump pumps and sewage pumps are typically used for effluent and sewage for basements, loading docks, low lying areas where water collects, sewage drains that are below sewer from restrooms in homes and businesses.


Sump pumps and sewage pumps feature a submerged motor (either air-filled or oil-filled motors) and different impellers which are designed to accommodate solids of various sizes.

Types of Fluids

Sump pumps and sewage pumps are designed to handle water and thinner liquids. They can pump liquids with or without solids when proper impeller type is chosen.


Sump pumps and sewage pumps eliminate vertical column shafts, bearings, housings and other wearable parts, they are more compact and reduce installation costs. They are shorter and usually have a smaller footprint. Cost savings for conversions from Vertical Column pumps to submersible.

  • MDI Sump and Sewage Pump Repair Services
  • Onsite troubleshooting
  • Removal of submersible pump from jobsite (If required)
  • Complete disassembly and inspection including non-destructive testing and precise measuring.
  • Bead blasting and thorough cleaning of all submersible pump components and parts
  • Sump and Sewage pump parts fabrication or rebuilt (As necessary)
  • Reassembly
  • Delivery

MDI can repair, rebuild, redesign, or upgrade your sump or sewage pump to get it back in service as quick as possible with the reliability that you expect in the Michiana region. We stand behind every rebuild or repair with our 100% workmanship guarantee.

MDI’s Preventive Maintenance Programs create peace of mind and system longevity.

MDI's repair service for all your pump needs, just fill out the form below to get things started or call.

Call Us Toll Free: (800) 634-4077

Ideal Service Area
Ideal Service Area