Patterns tell the story
A drain that backs up only after laundry, a gurgle that appears after several showers, or a meter that moves overnight but not at midday all point to different causes. On the day the plumber arrives, the problem may not be happening at all, so your notes are the only evidence.
Keep the log for two or three weeks if the problem is not urgent. Record even small events. In older La Mirada homes with clay laterals and aging supply lines, slow trends are often more revealing than a single dramatic failure.
Daily log
| Date and time | Where | What you noticed | What was running | Meter reading |
|---|---|---|---|---|
What to note each time
- Which fixture or room, and whether other fixtures were affected.
- Whether the washer, dishwasher, irrigation or a shower was running.
- Hot side, cold side or both.
- Sounds: gurgling, hissing, knocking, popping or running water.
- Smells: sewage near a drain or outside, or rotten eggs near gas appliances.
- Photos or short videos of the problem while it is happening.
When to stop logging and call
- IfAny gas smellThenStop. Leave the house and call 911 or SoCalGas from outside.
- IfSewage rises into a tub or showerThenStop using water and call for help the same day.
- IfThe meter moves steadily with everything offThenSchedule leak detection; do not wait weeks.
- IfThe problem is getting worse each timeThenBook a visit and bring the log.
Useful readings to include
- Meter at bedtime and morning
- Shows overnight leaks
- House water pressure
- From a gauge on a hose bib
- Water heater age
- From the label or serial number
- Last drain cleaning
- Date and what was found
Questions to ask the plumber about your log
- Does the pattern point to a branch line, the main line or the supply side?
- Which test would confirm it, such as a camera run or pressure test?
- Is there anything I should keep logging after the repair?
Common questions
Is a log worth it for an obvious problem?
For a burst pipe, no; stop the water and call. The log is for intermittent or slowly developing problems.
Should I record water bills too?
Yes. Comparing usage over several billing periods can confirm a hidden leak started at a certain time.
What if the plumber cannot reproduce the problem?
Your log, photos and videos give them a starting point, and may justify a camera inspection or pressure test.
General information for La Mirada, not a quote or professional advice. In an emergency, call 911.