Homeowner states that they had several issues they wanted us to repair when we came out such as 2 leaking hose bibs and a garbage disposal. Upon arrival homeowner greeted me on driveway and explained the situation. He took me to the basement where the GWH is located and main shut off. I did my inspection and found that the PRV was replaced but not the blown expansion tank. I offered some solutions to homeowner and he agreed to fix everything today. I began with the garbage disposal by removing the old leaking model and installed a new badger V 1/2hp with a new collar. Once I was done I moved on to the basement and replaced the expansion tank with a new model pressurized to 75 psi. While I was in the basement I cut the backyard hose bib poly line and attempted to install a new pex pipe but was unsuccessful and will be back with a helper to reinstall the new hose bib. The front yard hose bib I removed by unsoldering the old model and installed a solder male adapter added tape and dope wi