What does this sewage grinder pump quarterly checklist cover?

15 items across 5 sections, covering arrival and access, pump cycle and cutters, level controls and check valve, alarm, and more. Each item spells out what the person walking the job is actually looking for, not just a box to tick.

Who should run this inspection?

The plumbing or maintenance tech running the station through a cycle on the quarterly round, watching it start, grind, pump down and stop, and checking the alarm.

When in the schedule should this walk happen?

Every quarter, since a grinder pump lives in a sealed basin nobody opens until it alarms, and by then a jammed cutter or a stuck float is already backing sewage up.

Why do these items ask for a photo?

11 of the 15 items call for photo evidence, 12 photos in all. A checklist answer without the photo is a claim; the photo is what makes the record worth something in a dispute and lets a reviewer approve work without re-walking the job.

What most often fails a sewage grinder pump quarterly inspection?

Floats or the level sensor fouled with grease and rag, so the pump either short-cycles or never starts and the basin creeps toward overflow. Check valve stuck open or fouled, so each pump-down drains back into the basin and the pump runs far more than it should. High-level alarm float or the alarm itself dead, so the one warning the station gives before it overflows never sounds.

Can I use this checklist in RTI?

Yes. Start a free RTI workspace, build this list as a checklist, and the Photo Gate holds the submit button until every mandatory item is answered and its photos are attached. Approved inspections roll into a branded turnover package with a tamper evident audit trail.

Free checklist

Sewage grinder pump quarterly maintenance checklist

A quarterly sewage grinder pump round is short on purpose: it catches the wear items that fail between annual services. This checklist is sized for a tech with a phone. Every item says what to look at and the photo that proves the round happened. Work is commonly verified against the applicable plumbing code, manufacturer's published instructions. Confirm the edition your authority having jurisdiction has adopted.

Start free with this checklist Download as PDF

The checklist

Every item, and the photo evidence it needs

The photo count on each row is what RTI would require before the item can be submitted. Work the list here and watch the gate hold, or load it into RTI and let it enforce the real thing.

Arrival and access

As-found panel lights and any level display noted on arrival
Panel run and alarm lights and any level display photographed before any test, so a stuck float or tripped alarm is caught as found; basin level read once the gas check clears.
Occupants told before the pump and alarm are tested
Owner or occupants told the alarm horn will sound and to hold off heavy water use during the test, and any off-site alarm monitor told first where the panel reports out.
No photo
Gas meter read at the lid gap before the lid comes off
Calibrated gas meter held at the lid gap and reading clear per the site's gas procedure before the lid lifts, lid guarded while open, no head or hands put into the basin.
Grade around the basin lid sheds water away
Lid sits above the surrounding grade with no ponding, settled soil or mower and vehicle damage, so rain and surface water are not running into the basin through the lid.

Pump cycle and cutters

Station runs a full pump-down cycle
Pump seen starting on level, grinding and pumping the basin down to its stop point and shutting off cleanly, no long run suggesting a worn cutter or a fouled impeller.
Run current and cutter condition observed
Running amps consistent with the pump's normal draw, no grinding or cavitation noise, no sign the cutter is dragging or the motor is laboring against a jam.
Run-hour meter and cycle counter read where the panel has one
Run hours and cycle count compared with last quarter, run time per cycle and starts per day worked out, a sharp rise flagged as infiltration, drain-back or a dulling cutter.
No photo
Wipes, grease and rag in the basin noted and reported
Basin surface, floats and cords checked for wipes, grease mats and rag, what's found photographed and reported to the owner so occupants can be told what not to flush.

Level controls and check valve

Level controls start and stop the pump at the right points
Floats or level sensor free of grease and rag, the pump seen starting and stopping at its set levels, off-level not so low it lets the pump run dry.
Check valve holds after pump-down
Discharge check valve seen holding after the pump stops, level not creeping back up from drain-back, no water hammer as the valve seats.
Pressure sewer curb stop and redundant check found in order
On a pressure sewer service, curb stop at the lot line found fully open with its box clear, redundant check valve holding, and no wet ground or odor along the small-diameter lateral.
No photo

Alarm

High-level alarm tests good
High-level float or sensor lifted or simulated and the audible and visual alarm confirmed operating, any remote or panel signal seen reporting.
Alarm beacon and occupant placard visible at the panel
Beacon lens clear and visible from the home or unit it serves, placard saying what the alarm means, to stop using water and who to call, with a current service number.

Close-out

Lid secured and panel left in automatic
Lid refitted and bolted or locked so children and debris stay out, panel switch back in automatic, run light off and alarm clear before the tech leaves.
Quarterly readings and findings sent to the owner
Run current, cycle count, basin findings and alarm result logged to the station record, and any deficiency or flushing problem reported to the owner in writing.
No photo

What usually sends this back

The failures are almost always the evidence, not the work

Floats or the level sensor fouled with grease and rag, so the pump either short-cycles or never starts and the basin creeps toward overflow.
Check valve stuck open or fouled, so each pump-down drains back into the basin and the pump runs far more than it should.
High-level alarm float or the alarm itself dead, so the one warning the station gives before it overflows never sounds.

Common questions

6 answers

What does this sewage grinder pump quarterly checklist cover?: 15 items across 5 sections, covering arrival and access, pump cycle and cutters, level controls and check valve, alarm, and more. Each item spells out what the person walking the job is actually looking for, not just a box to tick.
Who should run this inspection?: The plumbing or maintenance tech running the station through a cycle on the quarterly round, watching it start, grind, pump down and stop, and checking the alarm.
When in the schedule should this walk happen?: Every quarter, since a grinder pump lives in a sealed basin nobody opens until it alarms, and by then a jammed cutter or a stuck float is already backing sewage up.
Why do these items ask for a photo?: 11 of the 15 items call for photo evidence, 12 photos in all. A checklist answer without the photo is a claim; the photo is what makes the record worth something in a dispute and lets a reviewer approve work without re-walking the job.
What most often fails a sewage grinder pump quarterly inspection?: Floats or the level sensor fouled with grease and rag, so the pump either short-cycles or never starts and the basin creeps toward overflow. Check valve stuck open or fouled, so each pump-down drains back into the basin and the pump runs far more than it should. High-level alarm float or the alarm itself dead, so the one warning the station gives before it overflows never sounds.
Can I use this checklist in RTI?: Yes. Start a free RTI workspace, build this list as a checklist, and the Photo Gate holds the submit button until every mandatory item is answered and its photos are attached. Approved inspections roll into a branded turnover package with a tamper evident audit trail.

Related checklists

Sewage grinder pump AnnualSewage grinder pump annual maintenance checklistBasin opened and cleaned, cutter and impeller wear checked, seals and controls serviced and pump-down performance confirmed on the annual service15 items13 photos

Run it with the Photo Gate

A checklist nobody can submit half-finished

Load this list into RTI, stick a QR tag on the area it covers, and the submit button stays locked until every mandatory item is answered and the 12 required photos exist. Approved walks roll into a branded turnover package with a tamper evident record behind every line.