Keep each entry simple
Note the date, time, affected area and what was in use beforehand. Add photographs where safe and keep earlier readings.
Look for repeated conditions
Heating operation, showers, appliance cycles or weather may be relevant. Report the pattern without treating correlation as proof.
Avoid recreating damage
Do not deliberately run water to provoke a harmful leak. The investigator can advise which controlled checks are appropriate.
Explore the relevant service
General information for planning an investigation. The property, instruction and findings determine the appropriate work.