The gate valve on top of the hot water heater which isolates it was about 90% closed. When hot water was turned on to the fixtures that this tank supplies the pressure would drop because the valve was not fully open. Once I open the valve 100% there was no issues with the area is getting supplied hot water. I recommend spring of 2021 doing a hot water tank flush on all three tanks
I inspected the repair that was made by the care taker. I cut out the repair and made a new repair with Brass fittings. I removed the pvc water lines underneath the home and replaced it with new 3/4 inch pex. The existing water service was on the exterior of the home so I rerouted underneath the foundation. I replaced a failed hose bibb and shut off valve. I tested and everything is in great working condition at this time.