Work Performed: Investigated leak from Bosch combination boiler, which has caused significant water damage to the basement floor. Results: Leak appears to be coming from either the flow meter or the three-way valve. Unable to isolate the exact source due to proximity of both components and active water leakage. Damage to flooring suggests the leak has been ongoing. Recommendations: Recommend replacing both the flow meter and the three-way valve to ensure the issue is fully resolved. Will provide two estimates: One for repair and part replacement One for a replacement combination boiler as an alternative option