Is the water heater pressure relief valve working?
Turn off the water heater.
Test it by carefully (hot water is hot)flipping the stem up, does water come out does the stem move easy
Are you using a water pressure regulator?
What is the water pressure at the spigot?
2016 F350 6.7L LB CC Reese 28K 2014 Chaparral Lite 266sab
"Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety." 2014 19 days camping 2015 17 days camping201620 days camping