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Domestic water storage tank quarterly maintenance checklist

A quarterly domestic water storage tank 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.

Items
4
Photos required
6

Who runs it

The plumbing or maintenance tech on the quarterly round.

When in the schedule

Every quarter, walked with the domestic water equipment. A stored-water sanitary problem is invisible until someone tastes it or a sample fails.

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.

01

Sanitary integrity

  • Access hatch, seals and shell closed and intact

    Hatch closed and gasketed, no light or debris entry around the lid, shell and fittings sound with no leaks or corrosion breaching the tank.

    2 photos
  • Overflow and vent protected with intact screens

    Overflow terminates with an air gap, vent and overflow screens present and unbroken, no insect or vermin entry path, no back-siphonage risk.

    2 photos
02

Level and turnover

  • Level controls holding the tank in its working band

    Level control operating and holding the tank between its set points, fill valve closing off cleanly, tank turning over rather than sitting near-full and stagnant.

    1 photo
03

Screens and vents

  • Screens and vents clear and unobstructed

    Vent path open and screened, no debris blocking the vent, no crushed or painted-over screen that would restrict the tank breathing as it fills and drains.

    1 photo

What usually sends this back

The failures are almost always the evidence, not the work

  • An overflow or vent screen is torn or missing, giving insects or vermin a path into stored potable water.
  • Level controls hang so the tank barely turns over, and stagnant water in the bottom goes stale.
  • A hatch gasket or seal is bad, so surface water or debris can enter around the lid.

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

Mandatory items answered4 of 4
Photos attached3 of 6
Submit locked, 3 photos missing

The gate is enforced on the server, so it holds even if the phone is offline when the walk happens.

Common questions

What does this domestic water storage tank quarterly checklist cover?
4 items across 3 sections, covering sanitary integrity, level and turnover, screens and vents. 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 on the quarterly round.
When in the schedule should this walk happen?
Every quarter, walked with the domestic water equipment. A stored-water sanitary problem is invisible until someone tastes it or a sample fails.
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 domestic water storage tank quarterly inspection?
An overflow or vent screen is torn or missing, giving insects or vermin a path into stored potable water. Level controls hang so the tank barely turns over, and stagnant water in the bottom goes stale. A hatch gasket or seal is bad, so surface water or debris can enter around the lid.
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.