Upon arrival customer stated that she wanted the water heater flushed. Informed customer due to the age of the water heater that it possible to leak after we flush. Customer understood bc the water heater is 20 years old. Customer still wanted to move forward with the flush. Gave customer estimate to flush water heater. Customer approved estimate. Flushed water heater 3 times. Informed customer the water heater has a small drip and as had one for sometime due to water stains on the garage floor. Customer also stated that she noticed water under the water heater about a year ago. Also left estimate to replace water heater up to code. Customer stated she needed to talk to family before making decision. Tested systems and everything is working properly except the small leak from the water that was there before flushing.