Asked by: Touraya Plazuelo
home and garden home appliances

Does a shallow well need a foot valve?

Last Updated: 3rd May, 2020

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Foot valves are also used on deep well installations to help protect against loss of prime in the well piping system. Watch out: without a working foot valve, a shallow well jet pump is likely to lose prime and will stop working properly, risking loss of water supply to the building and even damage to the pump itself.

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Likewise, does a shallow well need a check valve?

Because shallow-well jet pumps use water to draw water, they generally need to be primed–filled with water–before they'll work. To keep water in the pump and plumbing system from flowing back down into the well, a 1-way check valve is installed in the feed line to the pump.

Beside above, why do you need a strainer for a foot valve? Most foot valves usually come fitted with an inlet strainer. This strainer filters the incoming water, thereby preventing debris in the well water from entering into the pipe and clogging the valve, jamming it in the open position. Pumping water from a lower level to a higher level requires a lot of energy.

Correspondingly, what happens when a foot valve goes bad?

A leaky foot-valve or check valve allows water to drain slowly down the well piping and flow back into the well. It can drastically increase your electric bill and occurs when no water is being drawn from the system. Unfortunately, a leaky foot-valve or check-valve is not the only cause of intermittent cycling.

Do I need a check valve and a foot valve?

We recommend using only one check valve or foot valve in a pump system. A foot valve should be at the inlet to the suction line of turbine, centrifugal, and jet pumps. If an additional check valve is required, it should be placed after the pressure tank to allow the pump and discharge pipe to remain pressurized.

Related Question Answers

Xiaoying Mariner

Professional

How much does it cost to replace a foot valve?

If foot valve, can run about $50-100 commonly for the parts - labor anywhere from maybe $100-150 for a very simple large-diameter well with surface jet or piston/centrifugal pump (so well is less than about 25 feet deep) NOT located in/on top of the well, so the drop tube and foot valve can be pulled up (if rigged with

Juri Khadri

Professional

How do I know if I have a shallow or deep well?

The diameter of your well casing determines what type of well pump you need. If you do not have a well casing, you have a shallow well. If your well casing is 4” or more in diameter, you can use either a jet well pump or a deep well submersible pump, depending on the depth of your well.

Tolentino Chandramouleeswaran

Explainer

How do I know if I have a bad check valve?

Symptoms of a Bad or Failing Air Pump Check Valve
  1. Exhaust fume odor. One of the first and most common symptoms of a bad or failing check valve is an exhaust fume odor.
  2. Failed emissions test. Many states require their road-going vehicles to pass an emissions test in order for the vehicle to be legally operated.
  3. Check Engine Light is On.

Seidu Menuchin

Explainer

How far should valve be from bottom of well?

To prevent sand and sediment from entering pumping system, foot valve/strainer should be at least 5 ft. (1.5 m) above bottom of well.

Marika Maguregi

Pundit

How do you get a foot valve off the bottom?

Keep your foot valve at least 30 cm off the bottom, and at least one metre below the lake's surface, to account for water-level fluctuations. Position the valve so it points down: Gravity and water pressure will help it close properly.

Atta Ricart

Pundit

Where does the check valve go on a shallow well pump?

The check valve should be installed in the suction side piping as close to the source of water as possible. It should not be installed within 2' of the pump's inlet, or anywhere on the discharge side of the pump.

Khadidja Haba

Pundit

Can check valve be installed vertically?

Check valve can be installed in horizontal or vertical piping runs, with the flow running upward. Mounting for vertical installations is critical.

Laie Angelis

Pundit

Where is a check valve located?

Check valves are found everywhere, including the home. If you have a sump pump in the basement, a check valve is probably in the discharge line of the pump. Outside the home, they are found in virtually every industry where a pump is located.

Marit Nogues

Teacher

Do I need a check valve?

Check valves are designed to permit water to flow in one direction and are a requirement on all submersible pump installations. Their job is to prevent water in the column above the pump and in the pressure tank from draining back into the well when the pump shuts off.

Benyoussef Huidobro

Reviewer

Can you use a jet pump without a pressure tank?

water pump without a pressure tank. can you hook up a water pump without a pressure tank? Of course, but if you have a pressure switch on it, the pump will cycle on and off CONTINUOUSLY while water is being used.

Alesya Mascarenha

Reviewer

Does a check valve go before or after a pump?

To prevent water from backing up thru the system after the pump is shut off, a check valve must be installed just before the chlorination device - on the side going to your filter of heater.

Romarey Eynard

Reviewer

Do foot valves go bad?

If the water system has a bad foot valve (located on the bottom of well piping) and power stays off for some time, you are more likely to lose well prime.

Qiao Kaltenbrunn

Reviewer

What causes a well to lose pressure?

A common cause of low well pressure is a clogged sediment filter located in the supply line after the pump. In some cases, the pressure switch that activates and deactivates the pump at preset water pressure levels also may have a blockage from sediment or mineral accumulation in the pressure sensor tube.

Montesion Brigido

Supporter

What does a foot valve look like?

A foot valve is found at the end of a pipe line in a suction lift application. They function as a check valve, but they also have a strainer affixed to their open end. The check valve is spring assisted. When the pump turns on, the pressure inside the pump column changes and the valve responds by opening.

Dayan Basabru

Supporter

How can you tell if your well pump 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.

Tegan Homrighausen

Beginner

What is a foot valve used for?

A foot valve is a type of check valve that is typically installed at a pump or at the bottom of a pipe line (hence the name). Foot valves act like ball check valves, but have an open end with a shield or screen over it to block debris from entering the line.

Danila Aghbalou

Beginner

How do you install a foot valve in a lake?

place bucket in the water and fill it to the top with water, firmly attach lid with handle, then submerge underwater. h. then, drag the bucket and water line to where you want it to go, so that the bucket bottom sits on bottom of lake and then the foot valve will automatically be suspended above the bottom.

Yulan Ajogin

Beginner

How does a foot valve work?

How does it work? A suction pump draws the liquid into the foot valve's strainer and through its check valve system. Because the spring assisted check valve responds to pressure on a continuum, the valve closes quickly when the pump shuts down, trapping the liquid in the pipe and pump before any backflow can occur.

Lubomir Basyah

Beginner

Do you need a check valve on a shallow well pump?

Because shallow-well jet pumps use water to draw water, they generally need to be primed–filled with water–before they'll work. To keep water in the pump and plumbing system from flowing back down into the well, a 1-way check valve is installed in the feed line to the pump.