Trace every water path inside the sink cabinet

DECISION GUIDE 16

Make the next action fit the evidence

Use the condition described here to narrow the first safe action, the responsible contact, and the written authorization.

Do not pay for certainty that the observable pattern does not support.

OBSERVE

Preserve the useful clues

Dry accessible parts and observe whether the first wet point appears while idle, with the faucet running, while draining, or during appliance discharge.

Write the time, fixture, room, and use that preceded the change.
Photograph the wider context before taking a detail view.
Keep model labels, bills, prior repair records, and test results together.

CONTAIN

Choose the safe boundary

Do not add sealant over wet joints or pull a heavy appliance across its hoses. Keep clear of wet electrical connections.

Containment should reduce harm without erasing evidence or transferring risk to gas, electricity, wastewater, finishes, or utility equipment.

AUTHORIZE

Put the first scope in writing

List every included valve, connector, strainer, trap, disposal joint, appliance branch, cabinet access, test, and restoration exclusion.

Ask what is included, excluded, and still unknown.
Set the price or authorization boundary before work expands.
Define the test or record that will show completion.

SANTA ROSA SOURCE

Check the current public guidance

US EPA WaterSense home maintenance

EPA provides meter, fixture, pressure, leak, and water-heater maintenance checks.

Before the visit Preserve the pattern and clear only safe access.
At diagnosis Ask what observation or measurement supports the conclusion.
Before repair Verify the legal provider and compare the complete written scope.
At closeout Review tests, remaining limits, permits, cleanup, and documents.