A multi-unit property on Ski Run Boulevard experienced intermittent water loss affecting several units. Unit B reported frequent service interruptions. The crew accessed the shared mechanical room to evaluate the supply system. The pressure tank showed signs of age and the floor conditions indicated previous moisture intrusion. Water loss to multiple units suggested a main supply issue rather than individual fixture problems. The technician traced the feed lines and discovered a failing pressure regulator that was allowing supply pressure to fluctuate unpredictably. When pressure dropped below the threshold, downstream units lost service. Riley Plumbing Heating And Air replaced the pressure regulator and verified consistent delivery across all connected units. Multi-unit buildings require different diagnostic approaches than single-family homes. Book an appointment if your building's water delivery has become unreliable.