Technician notes: out today to preform annual water heater flush. Home has 3 AO Smith 50 gallon natural gas water heaters. One of the water heaters is having an internal leak and will need to be replaced. All water heaters are 8 years old and are up to code. The other 2 water heater are working properly. Did not preform the flushes due to water heaters being outside manufacture warranty Job status: complete Job notes: customer stated they are renters through path light Estimates: ready to be sent