Free checklist
Oil-water separator annual maintenance checklist
The annual oil-water separator service is the deep pass: the measurements, cleanings and tests a quarterly round doesn't reach. This checklist keeps the full service on record with the photos that make it defensible later. Work is commonly verified against IPC / UPC plumbing codes, manufacturer's published instructions. Confirm the edition your authority having jurisdiction has adopted.
- Items
- 4
- Photos required
- 6
- Built for
- Subcontractors
Who runs it
The plumbing service tech with the licensed pump-out hauler on the annual visit.
When in the schedule
Once a year, coordinated with the pump-out so the tank is drawn down and the media can actually be pulled and looked at.
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.
Media and internals
- 2 photos
Coalescing media pulled, inspected and cleaned or replaced
Media removed with the tank drawn down, checked for blinding and breakdown, cleaned or swapped, baffles and weirs clear.
- 1 photo
Sample and inspection ports cleared and resealed
Ports opened, cleaned out so effluent is visible, gaskets sound and covers reseated without leaks.
Pump-out and records
- 2 photos
Full pump-out completed with hauler manifest kept
Tank drawn down by the licensed hauler, volume and disposal recorded, signed manifest filed with the service record.
Refill and verification
- 1 photo
Tank refilled and discharge appearance confirmed clean
Water leg re-established, unit run through a cycle, outlet observed clear with no sheen. Observe appearance only, not lab limits.
What usually sends this back
The failures are almost always the evidence, not the work
- Tank pumped but the coalescing media left in place year after year, blinded solid, so oil and water pass straight through no longer separating.
- Pump-out done without a hauler manifest kept, so there's no record of volume or disposal when it's asked for.
- Sample or inspection port left silted over and never cleared, so future quarterly checks can't actually see the effluent.
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 6 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 annual checklist cover?
- 4 items across 3 sections, covering media and internals, pump-out and records, refill and verification. 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 service tech with the licensed pump-out hauler on the annual visit.
- When in the schedule should this walk happen?
- Once a year, coordinated with the pump-out so the tank is drawn down and the media can actually be pulled and looked at.
- Why does every item ask for a photo?
- 6 of the 4 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 annual inspection?
- Tank pumped but the coalescing media left in place year after year, blinded solid, so oil and water pass straight through no longer separating. Pump-out done without a hauler manifest kept, so there's no record of volume or disposal when it's asked for. Sample or inspection port left silted over and never cleared, so future quarterly checks can't actually see the effluent.
- 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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