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..
Hereof, where does the check valve go on a well pump?
Many well pumps have built-in check valves. Even if a pump does have a built-in check valve, we recommend that a check valve be installed in the discharge line within 25 feet of the pump and below the draw down level of the water supply.
Secondly, where do you put the check valve on a submersible pump? In submersible pump applications, the first check valve should be installed directly on the discharge head of the pump or maximum one pipe length (20 feet) above pump. Water pumped and flowing through a piping system has a certain amount of energy (weight x velocity).
In this way, 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.
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.
Related Question Answers
How does a check valve fail?
For example, failing check valves will start to vibrate and even lose some internal parts when problems begin to arise. Sticking happens when the valve is stuck in a certain position, and it occurs when debris gets into the disc and body bore. Leaks stem from a damaged seat or disc or contaminants in the pipeline.Can you install a check valve horizontal?
Check valve can be installed in horizontal or vertical piping runs, with the flow running upward.What happens when a check valve fails?
A component failure can result in the valve not performing its function, which in the case of a check valve is to prevent reverse flow. In extreme cases, failure could result in the component or components escaping into the line, causing failure or nonperformance of other valves or equipment in the line.How much does a check valve cost?
Most homeowners pay between $135 and $1,000 depending on the size and type of the system. The device itself ranges from $35 to $600, while professional labor costs between $100 and $400. Expect to pay between $70 and $250 for a backwater or check valve, including install.What is the difference between a foot valve and a check valve?
Check Valves and Foot Valves. Check valves and foot valves are designed to stop water from going backwards when the pump shuts off. Check valves are normally on the discharge side of pumps, and foot valves are on the intake of pumps. The more check valves in a system, the more friction loss.Does a jet pump need a check valve?
Do I need to use a check valve or foot valve with this pump? Yes. 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.Does a deep well pump have a check valve?
Check valves permit water flow only in one direction and are required on all submersible pump installations. Some submersible pumps have built-in check valves, and are suitable for operation without an external check valve, provided the pump setting is not too deep.Do I have a deep or shallow well?
If it is small diameter, such as 1-1/4” PVC, that would indicate it is a shallow “well point” as they are called. If it is 2″ or above, it very well could be a deep well. Larger casings may also be shallow wells. Some of the largest diameter wells are very shallow (bored wells).How do I know if my check valve is working?
Place a hand on the valve and put your ear next to the valve if the temperature of the fluid will allow you to do so safely. Any sound of fluid running indicates a leak. A properly working valve will only render a small ”click” noise, indicating that the check valve is closing and blocking water from running backwards.Can I use a check valve instead of a foot valve?
The only differences are that the foot valve has a screen on it and a check valve does not, and a check valve has threads on both ends so you can put it in line. A foot valve only has threads on one end because it's meant to be at the end of a pipe.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.How far will a shallow well pump pull water?
The shallow well jet pumps draw water from one line situated in wells no deeper than a maximum of 25 feet deep. Deep well jet pumps use two lines, one for pulling the water, and one for pushing the water into the delivery system. Deep well jet pumps can pump water from wells that range from 25 to 110 feet deep.What should my well tank pressure be?
Prior to operation, with the tank, empty of water, the pressure should be 2psi below the cut-on pressure. So, for example, with a 30-50 pressure switch (factory default setting), air pressure in the tank will equal 28psi. If the pressure switch is adjusted to 40-60, the cut-on pressure will be 38psi.Does a submersible pump have a foot valve?
Nearly all well pumping systems, one line jet pump, two line jet pump, or submersible well pump, require a foot valve installed at the bottom of the well piping. The foot valve prevents water from flowing backwards out of the jet pump and well piping back into the well when the jet pump stops operating.Do I need a check valve on my pressure tank?
You need a check valve at the pump discharge and another above ground before the pressure tank. The one at the pump keeps the pipe full so you don't have a lag when the pump starts (no water hammer). You have water immediately.Can you install a check valve vertically?
Check valve can be installed in horizontal or vertical piping runs, with the flow running upward. Mounting for vertical installations is critical.What is the difference between a check valve and a non return valve?
A non-return valve allows the flow of fluid in only one direction. A check valve also allows flow in one direction and automatically prevents backflow when fluid in the line reverses direction. Typically the check valves are designed for a specific cracking pressure.What is the symbol for a check valve?
An arrow or the symbol for any type of check valve (a fluidic/pneumatic logic symbol) on the outside of the body indicates flow direction. 
