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Can a well pressure tank explode?

7 min read

Asked by: Elizabeth Ivey

What causes a water pressure tank to explode?

If too much pressure builds in the tank, it will eventually spring a leak and burst. And if the pressure gets really ridiculous, the tank actually explodes, becoming part bomb, part rocket. But even with the valve, all that extra pressure can wear down the tank over the years.

Can water pressure tanks explode?

There are a number of reasons that your water heater can explode; however, the main reason behind water heater explosions is pressure. Anything that causes excess pressure on your water heating system, such as a poor anode rod, or a lot of sediment buildup, can all cause your water heater to explode.

Can a well pump explode?

When water is heated, it expands generating hydrostatic pressure inside the pump. This may be enough pressure to cause the pump to fail – perhaps the seal would fail, or the pump casing might rupture. These explosions may cause significant damage or injuries because of the built-up energy.

How long does a pressure tank last on a well?

On average, a bladder pressure tank lasts 5–7 years.

How common is it for a water heater to explode?

Water heater explosions are rare but when they do happen, they can be devastating. Do not wait for a catastrophe. Here are a few signs your water heater will give before going burst. The pressure relief valve is usually located at the top of heater, on the side.

What happens when a hot water tank bursts?

When working properly, the water stops flowing when the tank is full, but because of the burst, the tank pushes the water out into the room as soon as it comes in from the pipe. Turn off the cold water supply line by twisting the valve clockwise until it cannot turn anymore.

How do I know if my water pressure tank is bad?

You can check the gauge down at the bottom and if you’re running water of any sort and that pressure is bouncing up to your top, which is 60 PSI (usually), down to a 40, and it’s doing that a lot and its very frequent, then usually that is a bad tank.

What PSI should my water pressure tank be?

Your well tank’s pressure should be set at 2 psi below the pressure switch’s cut-on point. This differs depending on your tank’s pressure settings. Most well tanks come set at 30/50. The cut-on pressure for the well pump is 30 psi, so the pressure of the tank should have a pressure of 28 psi.

Can a water heater explode?

While rare, residential water heater explosions do occur and can be deadly. Explosions are possible with both gas and electric tank water heaters, primarily those that are poorly maintained.

How much should it cost to replace a pressure tank?

The average cost to replace a well pressure tank is $275 to $500 depending on the tank’s capacity, and it’s pressure rating. High-end models or complex tank hookups with plumbing relocations can cost over $1,000. Replacing a well pump and pressure tank together costs $800 to $2,300.

What happens when well pressure tank goes bad?

Over time, your pipes may break. Water hammers can occur when a well pressure tank is no longer able to maintain a constant, optimal water pressure in your home. Instead, water flow is more apt to experience fluctuations that result in water hammers.

How much is a new pressure tank?

A new well pressure tank costs around $400 on average. Labor for installing a new well pressure tank is around $125–$200. The capacity and type of well pressure tank affect the final price. Larger well pressure tanks do not increase water pressure.

What causes a pressure tank to lose pressure?

Why is my pressure tank losing pressure? 1. If you have a standard captive air bladder type pressure tank, this is almost always an indication the bladder inside the tank has ruptured. Generally, these are not serviceable, and the pressure tank must be replaced.

How can you tell if your well pump is bad?

How To Tell If Your Well Pump is Going Bad

  1. 1) Decrease in Water Pressure. …
  2. 2) Air Spitting From the Faucet. …
  3. 3) Pumping Sand or Sediment. …
  4. 4) Water Quality Change. …
  5. 5) Water Pump Cycles On and Off Constantly. …
  6. 6) Loud or Unusual Noises. …
  7. 7) High Electric Bills.


How long should a well pump last?

between 8 and 15 years

The lifespan of a well pump is usually between 8 and 15 years, but how long yours lasts can depend on the way you use it and the type of pump you choose. The size and quality of the motor in the pump can affect how long it lasts. A pump with a larger, more durable motor should last longer if you care for it well.

How much should a well pump cost to replace?

between $900 and $2,500

The average cost of replacing a well pump is between $900 and $2,500. The cost varies based on the well size, materials used, and installation required. For example, replacing a shallow well pump will cost less than a deep well submersible pump.

When should I replace my pressure tank?

Cheaper pressure tanks will last 5 years, while high quality pressure tanks could last up to 30 years. If the water is clean and the tank is properly sized it should be lasting an average of 15 years.

What causes a well pump to burn up?

When there is too much water and not enough air in the tank, the pressure switch will signal the pump to turn on for short bursts of activity for only a few minutes at a time. This is called “short cycling” and can burn out your pump quickly.

What can damage a well pump?

Elements that Can Damage Your Well & Pump System

  • Having Your Pump “Sucking Air” Wells involve drilling a pipeline deep into the ground to where the underground water supply is feeding a healthy amount of water to the area. …
  • Natural Salts and Minerals. …
  • Rust and Other Wear & Tear. …
  • Inconsistent Power Supplement.


Can a well pump last 30 years?

Your well pump is an essential component to ensuring your home has a steady source of fresh, clean water. With proper well maintenance, your well pump can last, on average of 8 to 15 years, though many homeowners report their pumps lasting far longer, often between 20 and 30 years!

Should a well pump run constantly?

No, a well pump shouldn’t run constantly; if it does, there’s a problem with the water system. Well pumps are designed to run for a time and then shut off once the pressure tank is filled.

Why does my pressure tank keep running?

Your well pump is designed to shut off once it reaches a certain pressure. A significant leak anywhere in the well piping lowers the water pressure in the system. So if the pressure is too low, your pump won’t shut off and instead will continue running all the time.

How do you check a pressure tank?


Run the hose out of the house. Turn the boiler drain on and empty the tank. And once the tank is empty you can check the air charge. With with a handy tire gauge.

Why does my pressure tank keep turning on and off?

A blockage in the water supply piping.



For example, a clogged or nearly clogged water filter can cause the pump control to cycle on and off rapidly. This is because the blockage causes water pressure (between the pump and the filter) to rise very rapidly when the pump turns on.

What happens if pressure tank pressure is low?

If tank pressure drops, the bladder may have a tear or hole in it. A tank is waterlogged if it is completely filled with water or has too much water to function correctly. Waterlogged bladder pressure tanks contribute to the following problems : The pump motor cycles – turns on and off – too often.