Homeowner called us and stated that his toilet wouldn’t stop running water and called us out to provide some solutions. Upon arrival homeowner greeted and showed me the toilet upstairs next to the stairs left side. It wouldn’t stop filling the tank and I did my initial inspection checked the expansion tank and the water pressure at the GWH. The expansion tank was blown and the pressure was fluctuating which I explained to the homeowner that anything over 10 psi of fluctuations was a problem and need a new PRV. Homeowner agreed to fix the toilet, expansion tank and the PRV which I started by shutting off the water meter and began with the toilet minor rebuild. I replaced the supply line fill valve flapper and the handle. Then I proceeded to the expansion tank and finally to the crawl space to remove the old PRV and install the new model along with a new ball valve. Once it was connected I turned on the water meter and checked the pressure which was at 57 psi and steady. I then checked t