When the hot water runs out halfway through a shower, the first question is usually whether the water heater can be fixed or has to go. Sometimes it's a simple part. Sometimes the tank is done. Here's how to tell the difference, and what Riverside's water has to do with it.
Start with the age
Look for the sticker or plate on the side of the tank. The serial number usually includes the year it was made, and the manufacturer can confirm it if the code isn't obvious.
- Tank water heaters often last around 8 to 12 years.
- Tankless water heaters can last 20 years or more with regular maintenance.
If a tank is near or past that range and starting to act up, replacement usually makes more sense than paying for repairs on an old unit. If it's only a few years old, a repair is often the better value.
Problems that are usually repairable
- No hot water at all on a gas unit: often a pilot, thermocouple or gas valve issue.
- No hot water on an electric unit: often a heating element or thermostat.
- Water that's only lukewarm: a failing element, a thermostat setting or a broken dip tube.
- A dripping pressure relief valve: sometimes the valve itself, sometimes too much water pressure in the house. Either way, it's worth having checked, because that valve is a safety device.
- A leak at a fitting or connection on top of the tank: connections can often be tightened or replaced.
Signs it's time to replace
- Water leaking from the tank itself or pooling under it. Once the tank body leaks, it can't be patched.
- Rusty or discolored hot water, especially if the cold water is clear. That can mean the inside of the tank is corroding.
- Rumbling, popping or banging noises that get worse over time. That's usually hardened sediment at the bottom of the tank.
- Hot water that runs out faster every year, even though your household hasn't changed.
- Repeated repairs on a unit that's already near the end of its life.
Why Riverside water is hard on water heaters
Much of the Inland Empire has hard water, with a lot of dissolved minerals. When that water is heated, the minerals settle out as scale and sediment at the bottom of the tank. Over time that layer:
- makes the burner or elements work harder to heat the water,
- causes the popping and rumbling sounds,
- takes up space, so you get less hot water,
- and wears the tank out sooner.
Flushing the tank can help, especially when it's done regularly from the start. On an older tank with a lot of built-up sediment, flushing sometimes stirs up more problems than it solves, so it's worth asking a plumber first. A water treatment system can also cut down on scale throughout the house.
Tank or tankless when you replace
If you're replacing anyway, it's a good time to decide whether to stay with a tank or switch to tankless.
- Tank: simpler swap, usually the lower upfront cost, holds a set amount of hot water.
- Tankless: heats water on demand, takes up less space and lasts longer, but may need changes to gas, venting or electrical to install.
We cover the pros and cons in the benefits of tankless water heaters.
Don't ignore a leaking water heater
A small leak under a water heater can turn into a flooded garage or closet with little warning. If you see water around the base, shut off the cold water supply to the heater, turn off the gas or power to it, and call a plumber.
Rooter Warrior Plumbing & Drain Cleaning repairs and replaces tank and tankless water heaters for homes and businesses across Riverside County. Learn more about water heater services and water heater replacement, or call (951) 410-5108.
Questions about your plumbing? Call (951) 410-5108 or book online. We're open 24 hours Monday through Friday.