Customer had a high water bill and low flow when multiple fixtures are running in the home. This was noted post service for having an irrigation system installed in the yard. His son’s toilet upstairs was leaking so it was turned off. When turned off the tank had completely drained. This indicates a leak at the seal for the flush valve. Replacement or repair was recommended. Customer will have toilet replaced himself. Performed a diagnostic service to test the other four bathrooms. Found a leak in upstairs shower for daughter’s tub/shower valve. Also found a leak on the powder room toilet on the main floor. Checked house pressure to be extremely high at 110 psi. Recommend replacing the prv and failed thermal expansion tank. Finally, found that the first gate valve had been broken in a previous attempt to turn the water on or off to the home. This is likely the cause of low flow with multiple fixtures running in the home. Left estimate for all recommended repairs. Customer was unavailab