Completed electric water heater installation. Water heater is 50 gallon electric water heater. Adapted to existing plumbing, electrical, pressure relief run off. Added new cold side shutoff valve, st5 expansion tank, and a watch dog water alarm. Goliath pan is installed under water heater, and sensor from water alarm runs into pan. Replaced piece of dryer vent that was damaged with new flexible dryer duct. Cycled and tested water heater and dryer, both are working properly at this time. Customer paid balance in advance.