What causes a well pump to cycle 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 causes a well to short cycle?





Short cycling is when a pump turns on and off too rapidly. Not only can short cycling result in pump failure, but it can harm the rest of your system as well. Short cycling can occur for a number of reasons. One of most common reasons for short cycling is a loss of air in the water pressure tank.

How do I stop my well pump from short cycling?

What You Can do to Prevent Excessive Cycling on Your Water Pump

  1. Repair the tank air volume control.
  2. Drain the water tank and let air re-enter the tank.
  3. Drain the water from the tank and use the air inlet valve to recharge air back into your tank. The air charge should be 2 psi lower than you pump cut-on pressure.

Why does my well pump run intermittently?

The most common causes of hidden causes of intermittent pump cycling: water is running somewhere in the building without notice, such as a running toilet. a leaky check valve or foot valve at the water pump or in the well.

How many times should a well pump cycle?





A CSV with a 4.4 gallon size tank (1 gal draw down) will cause the pump to cycle about 40 times per day on the average house. Using the CSV with a 20 gallon tank (5 gallons of draw down) will cause the pump to cycle about 20 times per day on the average house.

Why does my water pump keep cutting out?

The most common cause of water pump short cycling is a loss of adequate air charge in the water tank. This problem is particularly common in those homes with non-bladder water pressure tanks that are older. The good news is that this particular problem is relatively easy to remedy.

Why is my pressure switch clicking on and off?

Switch Clicks On and Off Repeatedly
One of the most frequent culprits is a blown bladder in the water tank. You’ll need to replace this component, and also inspect the switch contacts to see if they’ve suffered any damage from the cycling.

How do you fix a surging well pump?

Unplug the valve and insert a pressure gauge into the valve to measure the air pressure. It should be between 20 and 30 pounds per square inch. Add air to increase the bladder pressure, then remove the air by holding the valve open with a fingernail. Then, check the air pressure again.

How do I know if my pressure switch is bad?



How to Tell If Your Well Pump Pressure Switch Is Bad

  1. Your water pressure is at or above the cut-out pressure, yet the pump doesn’t turn off.
  2. Your pump doesn’t turn on at the proper cut-in pressure.
  3. You have low water pressure even though the pump is running.
  4. Your pump runs, but it cycles on and off repeatedly.

How do you know when your well pump is going bad?

How To Tell If Your Well Pump is Going Bad

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


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

Some of the most common indicators of a faulty well pump and pressure tank include:

  1. Fluctuations in water pressure throughout the home.
  2. Strange noises or rapid clicking sounds coming from the tank.
  3. Spitting faucets.
  4. Scalding shower water.
  5. High electric bills.

How many hours a day does a well pump run?

How Long Can A Well Pump Run Continuously? As mentioned, a quality high-quality starter kit sump pump can run up to 24 volt hours; a more mediocre one can run continuously for between 6 and 18 hours. cooling down the device at this long a time took a substantial amount of time.

How long can a well pump run before it burns out?



In most cases, your home’s well pump should last around 10 years without worry, but like any electric machine, it’s important to take care to ensure it lasts.

Do well pumps use a lot of electricity?

Well pumps use a huge amount of energy every time they start up. Well pumps should be sized by a professional. It is not uncommon for people to have 3/4 hp pumps installed in their wells equaling 30 minutes of pumping per day or 350 kWh/yr, while a ½ hp pump, which uses only 240 kWh/yr, would be sufficient.

Does rain replenish well water?

While your well is a 6” hole in the ground, it is not directly replenished by rainfall, as you might expect a cistern to function. The rainfall that seeps into the ground on your property moves through the soil at a rate of only 10 feet per year.

How fast do wells refill?

Well water can replenish at a rate of 5 gallons per minute on average, but it will vary. It depends on the age of your well, how long you’ve been using it, the well’s location or geology, and the aquifer the well taps into to replenish its water level.

How does a well refill itself?



A well dug or drilled into saturated rocks will fill with water approximately to the level of the water table. If water is pumped from a well, gravity will force water to move from the saturated rocks into the well to replace the pumped water.