Free checklist
Oil-water separator quarterly maintenance checklist
A quarterly oil-water separator 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 IPC / UPC plumbing codes, manufacturer's published instructions. Confirm the edition your authority having jurisdiction has adopted.
- Items
- 5
- Photos required
- 7
- Built for
- Subcontractors
Who runs it
The plumbing or facilities tech on the quarterly round at the separator.
When in the schedule
Every quarter, and sooner after a heavy spill or wash-down event that loads the separator faster than usual.
The checklist
Every item, and the photo that proves it
The photo count on each row is what RTI would require before the item can be submitted. Copy the list as is, or load it into RTI and let the gate enforce it.
Oil and sludge levels
- 2 photos
Oil layer thickness measured at the top
Top layer dipped with a bob or paste, thickness noted against the point where it starts carrying to the outlet, not just eyeballed through the cover.
- 1 photo
Sludge depth checked at the bottom
Bottom sludge sounded and depth logged, compared to the last reading so the fill rate and pump-out timing are known.
Alarm and vent
- 1 photo
High-level or oil alarm tripped and confirmed
Sensor floated or the test function used, alarm actually annunciates locally and where it reports to, not just a lit panel.
- 1 photo
Vent open and unobstructed
Vent run checked clear, no crushed or capped pipe, screen at the terminal intact.
Discharge appearance
- 2 photos
Discharge observed clear at the outlet
Effluent looked at through the inspection port or at the outlet, no visible sheen or slug of oil carrying over. Observe appearance only, not lab limits.
What usually sends this back
The failures are almost always the evidence, not the work
- Oil layer let build past the point where it carries over to the outlet because nobody dipped the top layer, only glanced at the cover.
- Sludge on the bottom never measured, so the coalescing media chokes and short-circuits long before the next pump-out is scheduled.
- High-oil alarm assumed live because a light is on, never actually tripped by floating the sensor.
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 7 required photos exist. Approved walks roll into a branded turnover package with a tamper-evident record behind every line.
Submission state
The gate is enforced on the server, so it holds even if the phone is offline when the walk happens.
Verified against
Common questions
- What does this oil-water separator quarterly checklist cover?
- 5 items across 3 sections, covering oil and sludge levels, alarm and vent, discharge appearance. 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 facilities tech on the quarterly round at the separator.
- When in the schedule should this walk happen?
- Every quarter, and sooner after a heavy spill or wash-down event that loads the separator faster than usual.
- Why does every item ask for a photo?
- 7 of the 5 items call for photo evidence. 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 oil-water separator quarterly inspection?
- Oil layer let build past the point where it carries over to the outlet because nobody dipped the top layer, only glanced at the cover. Sludge on the bottom never measured, so the coalescing media chokes and short-circuits long before the next pump-out is scheduled. High-oil alarm assumed live because a light is on, never actually tripped by floating the sensor.
- 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.
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