*client just wanted us to flush the heater. Client didn't want us to inspect rest of home. * Once I was done flushing the water heater I did not notice any issues regarding the water heater. Water heater is 8 years old. I informed the client of the possibility it could crack due to the age client was aware and stated they flushed it over the years. * In the utility room I noticed the gas line was a mixture of galvanized and black iron. This combination is very dangerous as galvanized is not meant for pressurized gas. Galvanized is meant for drain lines and water lines. * I immediately went to the client once I noticed the situation, client was unaware of the situation. I sent over an estimate to properly bring it up to code.