What are the steps for troubleshooting building leaks to avoid misjudgment?

The biggest mistake in building leak troubleshooting is assuming it's a broken pipe right away. Seeing water on-site doesn't mean the source is directly above; air conditioning condensation, roof seepage, water backing up from floor drains, or water entering through window frames can all leave traces in different locations. When I arrive on-site, I usually check three things first: whether the…