Does your shower start out nice and hot, then rapidly run out after just a few minutes? If the problem is only happening while taking a shower, it could be the shower mixer. A plumber should check the pressure balance and temperature control faucet. When they are not working properly, you will notice a reduction in the hot water pressure when using a faucet. Temperature control shower faucets have a spring that turns the hot water supply down when it detects a change in the water temperature. As the spring ages and wears out it results in a loss of hot water temperature.
Broken Dip tube
Another common cause of rapid hot water loss is a broken dip tube. This dip tube is a pipe inside the water heater that passes cold water through the hot water to the bottom of the tank so the burner can heat it up. If the dip tube falls off, the cold water empties into the top of the water heater and overruns the hot water outlet, sending cold water to the shower.
To determine if the dip tube is the cause of the problem and to stop the loss of hot water your plumber will need to pull the cold water inlet pipe out to the water heater to check the condition of the dip tube.
Water Heater Age
A water heater will typically last around 10 years. Over time sediment can build up leading to corrosion. The burning will gradually become less efficient and will produce less hot water in the same period of time as it used to. Consider the age of the unit when deciding whether to repair or replace the water heater.
Have water heater problems? Call Anthony’s Plumbing. We can help diagnose the cause and recommend effective solutions to get the hot water flowing again.