Plumbing
It’s always useful when doing a plumbing inspection to run all the faucets in your home at the same time. Flush all the toilets and work your way from the bottom (basement) of your house up to the top floor(s) checking pipes and surrounding areas.
Close valves and turn off water supplies to the entire house or to your least-used pipes, such as to the washing machine and water heater.
Consider also turning your water heater to “low” or “vacation” mode.
Why burn up fuel heating water you’re not using while you’re away from home? Check drains for clear drainage to prevent any backups from unexpected water surges, especially your storm drains.