Rusty or Smelly Hot Water
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Rusty hot water usually means the tank or its fittings are corroding, often after the anode rod is used up. A rotten-egg smell in hot water only usually comes from bacteria reacting with the anode rod. A plumber can check the anode and flush the tank. If cold water is affected too, check the pipes or supply.
Last reviewed October 19, 2026.
How do you narrow down the cause?
- Only hot water is discolored: points to the water heater.
- Hot and cold water are discolored: points to pipes or the water supply.
- Only hot water smells like rotten eggs: usually a reaction between bacteria and the anode rod in the tank.
- Gas smell near the heater, not in the water: leave and call 911 or SoCalGas.
What is an anode rod?
An anode rod is a metal rod inside the tank that corrodes so the tank doesn’t. Once it’s used up, the tank starts to rust. Checking it during maintenance can extend tank life.
When does rusty water mean replacement?
If rust comes from the tank itself and the heater is near the end of its typical 8 to 12 year life (Angi estimate), replacement is often the better value. See repair or replace.
When should you call an emergency water heater pro in Ventura?
Call for urgent help, and leave the house first where noted, if any of these apply:
- You smell gas (a rotten-egg odor) near the water heater: leave right away without flipping switches, then call 911 or SoCalGas from outside.
- A carbon monoxide alarm sounds, or you see soot, scorch marks, or flames outside the burner area: get everyone outside and call 911.
- The tank is actively leaking or water is spreading toward walls, flooring, or electrical outlets. Shut off the cold-water valve above the tank.
- The temperature and pressure relief valve is discharging hot water repeatedly, or the tank is making loud banging sounds.
- Water from the hot tap is scalding hot, or steam comes out of faucets.
- There is no hot water and someone at home needs it for medical or caregiving reasons.
If you smell gas or a carbon monoxide alarm goes off, leave the building first and call 911 or SoCalGas from outside. Don't wait for a plumber.
Where is rusty or smelly hot water help available near Ventura?
Requests are taken from Ventura and these nearby communities:
What do people ask about water heater repair in Ventura?
Is smelly hot water safe?
The rotten-egg smell from a tank is usually more of a nuisance than a hazard, but have it checked. If the smell is gas rather than water, leave and call 911.
Can an anode rod be replaced?
Yes, on most tank water heaters. A plumber can tell you whether it's worth it based on the tank's age and condition.
Why is my hot water cloudy?
Cloudiness is often air bubbles or minerals. If it clears from the bottom up in a glass, it's usually air.
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