About this example
This case is hypothetical. The household and details are invented to illustrate what typically happens; no real customer, home or company is described.
The home is a 1970s Placentia house with a gas tank water heater in the garage. Nobody is sure when it was installed, and it has never been flushed. One morning there is a puddle around its base and the shower runs lukewarm.
Making it safe
- Find the source.Water is seeping from the bottom of the tank itself, not from a fitting or the relief valve line.
- Close the cold supply.The owner closes the valve on the cold line feeding the heater.
- Turn the gas control off.The gas control on the heater is set to off. There is no gas smell; had there been, the right move would have been to leave and call 911 or SoCalGas from outside.
- Drain if needed.A hose on the drain valve leads water out of the garage to limit the puddle.
The plumber visit
Illustrative example. Not a real job or customer.
A licensed plumber, license checked at cslb.ca.gov, confirms the tank has failed. The serial number suggests the heater is well into its expected life, and heavy sediment rattles inside.
- The plumber explains that a leaking tank body cannot be repaired.
- They check the gas line size, vent and garage space in case the owners want a tankless unit.
- They note the current straps do not meet seismic requirements and the relief valve drain needs correcting.
The owners receive written quotes for a like-for-like tank and for a tankless conversion, each listing permit, strapping, venting and haul-away.
The choice they faced
New tank
- Uses the existing vent and gas line
- Simpler, quicker install
- Same space in the garage
Tankless conversion
- Gas line upsizing needed in this example
- New vent route
- Frees floor space; needs regular descaling
What the finished install included
- Permit and city inspection
- Proper seismic straps
- Correct relief valve drain
- Venting checked for draft
- Leak check on gas connections
- Old heater hauled away
- Install date written on the new heater
Common questions
Is this a real Placentia customer?
No. It is an invented example to show a typical situation.
Why did they not just patch the tank?
A leak from the tank body means the steel has corroded through. It cannot be reliably repaired.
Did the replacement need a permit?
In this example, yes. Water heater replacement commonly requires one; check with your city.
General information for North Orange County, not a quote or professional advice. In an emergency, call 911.