Installed new expansion tank due to failed left side expansion tank. Let homeowner know that we installed a 4 gallon expansion tank instead of two 2 gallons to save on parts and labor. Also installed new ball valve and repair repaired leak by main water line. Homeowner is aware if faucet keeps dripping upstairs after courtesy aerator install she needs to install new cartridges. Let homeowner know that we drained home through Hobi in front of house and turned water off at hose bib and left main hose bib shut off on as it was already on.