There are 2 items that should be mandatory for owning a rv;
#1 a surge protector/EMS either hardwired or portable.
#2 an adjustable water pressure regulator (pictured below), they typically come preset at 50-55 which is a good pressure & safe for your rv. Get one & hook it up at the faucet every time you connect to water.
Just FYI! This is NOT a regulator, it's a restrictor that restricts the flow regardless of pressure.