Free checklist
Fuel oil storage and day tank quarterly maintenance checklist
A quarterly fuel oil system 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 NFPA 110, manufacturer's published instructions. Confirm the edition your authority having jurisdiction has adopted.
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.
Storage tank
Tank level read and fuel age noted
Level gauge or dipstick reading recorded against last visit; long-idle fuel flagged for polishing or a sample.
Water bottom checked at the low point
Bottom sampled or water-finding paste used; any water phase or dark sludge noted for draining, not left in the suction path.
Tank shell or buried tank sump checked for corrosion
Aboveground shell, saddles and anchors, or the manway and sump of a buried tank, checked for rust, dents, standing water and fuel staining.
Tank labels and fill marking legible
Product name and capacity legible on the tank, room or fill, and a hazard placard where the jurisdiction requires one; the fill marked for fuel oil so no delivery goes to the wrong port.
Day tank and pump
Float switches and transfer pump cycled
Day tank drawn down and refilled through a real pump cycle; fill and low-level floats seen to make and break, overflow return running back to the main tank.
Return line flow confirmed
Return to the storage tank flowing freely, no closed valve or kinked line that would let the day tank overfill.
No photo
Leaks and containment
Interstitial and containment checked dry
Double-wall interstitial space and any spill containment or dike checked dry, leak-detection sensor not in alarm.
Filters, vents and fill visually clear
Primary filter bowl free of water and debris, vent cap and screen open, fill cap capped and labeled with no seepage at the connections.
Leak monitor alarm history read since last visit
Where a monitor console is fitted, its alarm and event history since the last round read and each entry traced to a cause, not just silenced.
No photoOverfill alarm tested at the fill point
Where an overfill alarm is fitted, people near the fill and anyone it reports to warned first, then the test button pressed, horn and light seen at the fill and the alarm reset.
No photoFill point spill containment checked
Spill bucket or fill box dry, clean and its drain closed, or the ground under a direct fill free of staining; any fuel or water found removed and noted.
Spill response and records
Spill kit stocked near the tank and fill
Kit within reach of the tank and fill, absorbents suited to oil, bags and gloves present and not used up since the last visit.
Any release since last visit reported per the owner's plan
Fuel found in containment, at the fill or on the floor reported to the owner through their spill plan's contact route, cleaned up and recorded, never just wiped away.
No photoRound logged in the owner's tank inspection record
Level, water check, leak monitor status and any findings entered in the inspection record the owner's spill prevention plan keeps for this tank.
No photo
What usually sends this back
The failures are almost always the evidence, not the work
- Main tank gauge read as full while water has settled to the bottom and is feeding into the suction.
- Day tank float switch stuck, so the transfer pump either runs dry or overflows the return with no one watching the level.
- Weep at a flare fitting or filter head wiped up on the last visit and never traced, so it soaks the containment between rounds.
Verified against
Common questions
6 answers
- What does this fuel oil storage and day tank quarterly checklist cover?
- 14 items across 4 sections, covering storage tank, day tank and pump, leaks and containment, spill response and records. 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 generator service tech or building maintenance mechanic, usually on the same visit as the standby generator round.
- When in the schedule should this walk happen?
- Every quarter alongside the generator exercise, because a starved or waterlogged day tank only shows up when the set is loaded.
- Why do these items ask for a photo?
- 9 of the 14 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 fuel oil storage and day tank quarterly inspection?
- Main tank gauge read as full while water has settled to the bottom and is feeding into the suction. Day tank float switch stuck, so the transfer pump either runs dry or overflows the return with no one watching the level. Weep at a flare fitting or filter head wiped up on the last visit and never traced, so it soaks the containment between rounds.
- 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.
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.
See all 508 checklists · 6741 items and 5984 photo requirements in total.