Tech arrived customer explained she had a shower with no hot after and a 30 y/o water heater. Tech explained pricing and procedure of options. While looking at the hot water heater tech noted the laundry valve had a small drip. Customer was given prices of replacing heater, shower cart., and laundry valve. Once tech was authorized to proceed, cartridge and valve had been replaced and tested to ensure no leaks were present and everything was functioning properly. Water heater had water and electric shut off prior to tank being drained. Tech replaced water heater with a similar model (new Bradford white 40 gal electric lo boy). Tank was then piped and wired in, once piping was complete, water was restored and lines bled, insuring no leaks had been present. Electric was then turned on to unit, tech let tank heat up and tested water to ensure it was working. At this time there are no leaks or issues.