Should the water supply be turned off before working on the expansion tank?

City of Irvine Structural Observation Program, per Informational Bulletin No. ... Water Heater and/or Vent. P12. Thermal Expansion Tank. P33. Solar Water Heating. Offering system replacement and upgrade options in a low-pressure, informative ... Bradford White Gas Electric Hot Water Heater with Expansion Tank - Save Home ... No intervening valves should be installed between the expansion vessel, expansion valve and hot water heater/storage. Who is responsible for enforcing safety? If a pressure reducing valve not equipped with a bypass is installed in the cold water supply line to a water heater, a thermal expansion tank or other pressure ... Informational Statement From the EPA About Lead in Drinking Water and Its Effects on ... pressure relief valve and expansion tank on the hot water heater. Expansion tanks help maintain stable water pressure and temperature throughout your home. Service Today offers expansion tank installation and repair services ... Aug 1, 2014 ... tank type water heater replaced with a tank less, or. 2. tank less ... The plumbing contractor shall provide the property owner, customer contact ... • If you do not have a thermal expansion tank on your hot water heater then it could ... See below under Thermal Expansion Tanks for more information. A water heater with pipes and an expansion tank installed beside an HVAC unit. ... It's an informational flyer on protecting drinking water from cross ... Jan 15, 2015 ... A failed expansion tank can result in increased hot water pressure when the water heater has been heating for a while (like overnight). Then ...