Customer stated that there was high pressure every once in a while and that garbage disposal was leaking. Tested pressure to the house and pressure was right around 80psi. Customer wanted to move forward with replacing PRV And installing garbage disposal. Furnish and installed new three-quarter inch PRV with main shut off valve. Tested no leaks and set water pressure to 65 psi. Furnish and install new garbage disposal under kitchen sink. Tested and garbage disposal was working as it should and no leaks were present at this time. Cleaned up work area.