Hot Water Heater Making Knocking Noise

The problem with this.

Hot water heater making knocking noise. Hot water heater making a knocking noise there are several potential causes that might explain a persistent knocking noise coming from your water heater. A knocking noise especially can indicate problems that can accelerate the longer you let them go on. Some of the water under the sediment starts boiling and tries to escape the sediment layer making the popping noise as a result. It s either a phenomenon known as a water hammer or plain old mineral buildup.

Some homes use cpvc chlorinated polyvinyl chloride as their hot water supply pipes i e. The pipes that deliver hot water to your shower sinks washing machine etc. Drain the water heater tank and flush out the sediment. The water flowing out of the hose will be murky at first.

Your water heater s tank can even overheat deteriorating the tank s protective inner lining as a result. Your water heater is making a knocking banging or popping sound because of the large amount of solid sediment minerals in the tank. A knocking sound in your walls is related to pipes heating internally and is literally known as water hammering when water entering or leaving the tank is abruptly turned off it can cause the pipes to move banging against studs or the interior of walls. Poor construction of cpvc water lines.

Read our blog to learn the story behind the water heater knocking sound the problems it can cause and how to fix it. A clicking knocking noise starts soon after a hot water tap is turned on. Open a hot water faucet on a nearby sink to prevent a vacuum from forming in the heater and open the heater s drain valve. Knock or hammer sound.

We don t think any noise from your water heater or other home system should be ignored. Does your water heater make a knocking rumbling noise that could wake the dead. Both of these things can be dangerous for your device or even your whole plumbing network. Now if a cpvc line was routed through a hole or area that is too tight you ll hear a rubbing.

When the water flow is abruptly stopped there s no place for the water to go within your household plumbing so it flows in reverse back to its original source. If so your water heater tank has most likely collected a thick layer of sediment minerals like calcium and lime. If your hot water heater is making a knocking noise it could be an issue called water hammer. Your water heater is struggling to heat the water properly meaning it runs longer.

You can either flush it yourself or call a professional atlanta area plumber. Clicking knocking noise doesn t stop until several minutes after the hot water tap is off.