Inspected the water damage, however unable to determine the source of the leak. Potntially the shower drain or the toilet in the master bathroom. Will need to remove water damaged drywall in the family room ceiling below the bathroom to perform tests and locate where the leak is coming from. We opened ceiling and discovered the leak coming from the 1/2” hot water connection to the shower valve. The water lines are all CPVC and in very brittle condition. We meed to replace both hot and cold water lines.