Not recommended. This project requires adherence to complex plumbing and electrical codes (Illinois Plumbing Code, 2024 IRC, 2023 NEC) and often necessitates a permit and inspection by the local building department. Improper installation can lead to serious health hazards, property damage, and electrical dangers.
Replacement of an ejector pump typically involves like-for-like installation, requiring specialized plumbing and electrical skills, but generally avoiding major structural modifications or extensive system redesign. Compliance with existing code for proper sizing, venting, and electrical connection is paramount for safe and reliable operation in DuPage County residences.
Project Guidelines & Rules
General & Permitting Requirements
4 Rules
Permit Requirement
A permit is required from your local municipality for the replacement of sewage ejector pumps. Verify specific local requirements before commencing work. (IL Plumbing Code, Local Ordinances)
Licensed Professionals
All plumbing work shall be performed by an Illinois licensed plumber. All electrical work shall be performed by an Illinois licensed electrician. (IL Plumbing Code Section 890.300, 2023 NEC 90.2)
Manufacturer's Instructions
All equipment shall be installed in accordance with the manufacturer's written instructions. (2024 IRC M1301.1, P2501.1, 2023 NEC 110.3(B))
Inspections
Work shall not be concealed until inspected and approved by the local building department. Final inspection is required. (2024 IRC R109.1, P2503)
Plumbing System Requirements
7 Rules
Pump Sizing
The ejector pump shall be sized to handle the peak sewage load and provide sufficient head pressure for the discharge system. Ensure replacement pump capacity meets original design or current load requirements. (IL Plumbing Code 890.800)
Sewage Ejector Basin/Pit
Sewage ejector basins shall be gas-tight and vented to the open air. The basin shall be constructed of an approved material resistant to corrosion and capable ofwithstanding external pressures. Existing basins must be inspected for integrity. (IL Plumbing Code 890.800(g))
Discharge Piping
Discharge piping shall be sized appropriately for the pump and not less than 2 inches in diameter. Piping shall be installed with adequate support and slope. (IL Plumbing Code 890.800(d), 2024 IRC P3005.4)
Check Valve & Shut-off Valve
A check valve (swing or full-port ball check) shall be installed on the discharge pipe immediately downstream of the pump, followed by a full-open gate or ball valve for service access. (IL Plumbing Code 890.800(f), 2024 IRC P3008.2)
Inlet Piping
Inlet piping shall enter the basin above the operating water level and be sealed watertight to the basin. (IL Plumbing Code 890.800(g))
Basin Cover & Sealing
The basin cover shall be gas-tight and bolted or otherwise secured to prevent accidental removal. Penetrations for pipes and wires shall be sealed watertight and gas-tight. (IL Plumbing Code 890.800(g))
Emergency Power/Alarm (Recommendation)
Consideration should be given to installing a battery backup system or high-water alarm for power outages, especially in areas prone to basement flooding. (2024 IRC P2901.1.2 - General protection)
Electrical System Requirements
6 Rules
Dedicated Circuit
Each sewage ejector pump shall be supplied by an individual branch circuit. (2023 NEC 210.23, based on common practice for motor loads and critical equipment)
Circuit Sizing & Overcurrent Protection
Conductors shall be sized to carry the pump's full-load current without overheating. Overcurrent protective devices shall be rated in accordance with the pump's nameplate and NEC Article 430 for motors. (2023 NEC 210.19, 210.20, Article 430)
Disconnecting Means
A readily accessible and lockable manual disconnecting means shall be provided in sight from the pump motor, or be capable of being locked in the open position. (2023 NEC 430.102(B), 430.109)
Grounding & Bonding
All non-current-carrying metal parts of the pump, basin, and associated electrical equipment shall be properly grounded and bonded in accordance with NEC Article 250. (2023 NEC Article 250)
Wiring Methods in Damp/Wet Locations
All wiring and electrical components within the ejector pit or damp locations shall be installed using approved wiring methods suitable for the environment, such as in conduit. Connections must be watertight. (2023 NEC Article 300, 314, and 430)
GFCI Protection
If the ejector pump is cord-and-plug connected and located in an area requiring GFCI protection (e.g., unfinished basement or utility room receptacle), the receptacle shall be GFCI protected. Hardwired pumps generally do not require GFCI protection, but local amendments or specific product listings may vary. (2023 NEC 210.8)
Venting System Requirements
4 Rules
Vent Size
The vent pipe from the sewage ejector basin shall be at least 2 inches in diameter. (IL Plumbing Code 890.800(i))
Vent Connection
The ejector vent shall connect to a building vent stack or extend independently to the open air. It shall not be used as a vent for any other fixture. (IL Plumbing Code 890.800(i))
Vent Termination
Vent pipes terminating outside the building shall extend at least 6 inches above the roof, at least 1 foot above any openable window or other opening within 10 feet horizontally, and in accordance with frost closure requirements for DuPage County (e.g., adequate height to prevent blockage from snow or ice). (IL Plumbing Code 890.1540(a), 2024 IRC P3103.1)
Vent Materials
Vent piping shall be of approved materials suitable for sewage gases, such as PVC, ABS, cast iron, or copper. (IL Plumbing Code 890.510, 2024 IRC P3002)
Testing & Safety
3 Rules
System Testing
After installation, the ejector pump and associated plumbing shall be tested for leaks and proper operation by filling the basin and cycling the pump. (2024 IRC P2503.6)
Safety During Installation
Ensure electrical power is disconnected and locked out prior to commencing work on the pump or electrical system. Follow all OSHA and industry safety standards. (2023 NEC 110.16, General Safety Practices)
Pump Maintenance Access
Ensure adequate clear working space is provided around the ejector pump and basin for future maintenance and service. (2023 NEC 110.26, General Safety)
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