Found a pinhole on copper line at the main water supply to the house before the pressure regulator in the basement. gave homeowner price to repair line. Homeowner agreed. Homeowner had access in another room to access the main in the ceiling. Cut damaged waterline out. Replaced with pex. tested with no leaks or failures at repair at time of service. Educated homeowner about pinholes in Copper waterlines. Advised homeowner to just monitor the rest of the home for any signs of other leaks due to the deteriorating copper. The copper I was able to visually assess in the basement did not look heavily damaged. Homeowner does have a water softening system installed.