For this job I completed a home inspection as a courtesy, home owner went with a couple of options on repairs needed to be done to home. Water pressure was 90 psi with is higher than the allowance permitted per fixture. I installed a new regulator and a new ball valve. I set the new psi to 65. I also replaced the expansion tank that had failed and was hanging down only supported by the pipe. I installed the new tank and secured it using a mounting bracket. I set the psi on the tank to 10 over the house pressure. I tested and left work area clean.