Tech notes: out today to install new mgp supplied 40 gallon natural gas water heater. Upon arrival, turned water off to home and drained down existing unit. Once drained, disconnected and removed heater. Unboxed and prepped new heater, placed new heater onto pan. Installed new copper risers, shut off valve, expansion tank, gas flex line, gas shut off, gas drip leg. Once all connects were made, turned water back on to test. Everything is functioning properly at this time. Successfully lit water heater. Job status: complete