Beavis123
Feb. 14, 1998A city in California is interpeting section 608.3 – Uniform Plumbing Code – In addition to the required pressure or combination pressure and temperature relief valve, an approved, listed expansion tank or other device designed for intermittent operation for thermal expansion control shall be installed whenever the building supply pressure is greater than the required relief valve pressure setting or when any device is installed that prevents pressure relief through the building supply. The tank or device shall be sized in accordance with the manufacturers recommendation , to mean an expansion tank is required on all water heater installations or replacements. Your comments please.Thank you.
