Upstairs guest bathroom tub shower was slightly leaking due to an old cartridge. Water pressure was too high due to a failed pressure reducing valve. Shut water off at the street and drained system down. Removed the failed cartridge and failed tub spout. Applied valve grease and installed new delta cartridge. Replaced the tub spout and applied silicone around the base. Installed new ball valve and pressure reducing valve in the crawl space and set pressure to 65. Everything is working properly at this time.