How to replace/adjust a well water pressure switch

Today I will be replacing a well pump pressure switch. 00:00 intro and reason for replacing switch. 1:02 identify electrical connections. 1:24 CRITICAL; safety warning and using a voltmeter. 4:21 checking for voltage before touching wires. 5:04 identifying power feed and pump wiring. 6:47 disconnecting wires. 8:56 removing connections. 11:03 isolating water supply and. Draining tank. 15:07 removing old switch. 16:44 applying teflon tape 18:10 installing new switch. 19:48 rewiring grounds and terminals. 25:38 testing for leaks and power up. 27:15 adjusting cut-in and cut-out. 31:54 re-opening water valves. 32:53 checking failed switch. 34:26 final safety tips and wrap-up