Water pumps for wells are not known to people for obvious reason. Even in small villages where there is a network water supply through transport water pumps are rare to find. Moving on to interior villages one can find a well in each of the home and a system to get the water out of it, mostly electromechanical. Essentially there is a pump electrically powered. The most common variations of water pumps for wells are jet pumps and submersible pumps.

Water Pumps For Wells – Jet Pumps

Jet pumps work on suction mechanism. It actually sucks the air inside the pipe creating a pressure vacuum. The atmospheric pressure pushes the water up inside the pipe and it travels upwards. Naturally this technology imposes a restriction on the maximum height that can be attained. It depends on atmospheric pressure but as a thumb rule the height is taken as 25 feet. This is the reason these types of pumps are often called shallow water pumps. Additional engineering measures are employed to increase the water pressure finally coming out of the nozzle. Jet pumps rely on water to operate. Hence these need to be prefilled with water before using.

Water Pumps For Wells – Submersible Pumps

Submersible pumps are better choice than water pumps for wells to deal with higher elevation required for the water. These are definitely better and costlier than jet pumps. The machine itself is submerged inside the water. It thus prevents the risk of cavitation. Unlike jet pumps, submersible pumps do not rely on vacuum to pull the water up.

Water Pumps For Wells – Benefits Of External Jet Pumps

As the submersible pump is more efficient there are still a couple of benefits that an external jet pump provides.

• External jet pumps are better energy efficient. Considering the slab of electrical power consumption rate more than 10 amps consumptions adds considerably higher cost.
• For elevation need less than 25 feet an external jet is more user friendly, maintainable (as it is fixed outside) and cost effective option for water pumps for wells.

Water wells can vary greatly in the depth to water of the well, the well’s available water supply and the diameter of the well casing. Because of the many differences in wells, different types of water pumps are needed depending upon the individual well’s characteristics.

Water well pumps are mounted either above the well, or the pump is submerged in the water itself. The depth of the well or the distance the water has to travel to reach the surface is the determining factor whether an above ground pump or a submersible pump would be best.

For a well depth of 25 feet or less to the water, a shallow well jet pump is the most efficient type of pump. The pump sits above ground and has an outlet pipe drawing water from the well. There is a one-way “check” valve that keeps the pump primed as continuous suction must be maintained.

Deeper wells, ranging from 25 feet to 110 feet use a deep well jet pump. This type of pump also is above ground draws water through one pipe and pushes it out through a second pipe. Deep well jet pumps will require a “foot” valve to prevent the water from running back into the well when the pump is not working.

Wells with depths to water ranging up to 400 feet are best served with a submersible pump. A submersible pump is in the water at the bottom of the well and pushes the water up a pipe in the well usually to a pressure tank which will then increase the water pressure to the outlet pipe for water use. Because a submersible pump is at the bottom of the well, it can be an expensive and time consuming repair if the pump malfunctions.

All three types of pumps are made in different sizes depending upon need. A pump’s size is rated in “gallons per minute” or GPM. A standard calculation for residential use wells and pumps is to count one GPM for each water fixture in the home. A typical three or four bedroom home would require a pump with a minimum rating of between eight to 12 gallons per minute.

Other factors that need to be considered when selecting a pump are the distance the water has to travel from the well to the place of use, size and type of material of the well casing, size and material of the pipe the water is traveling through and elevation changes from the well to the point of use.

Selecting the proper size of pump is important. An oversized pump for the intended use can actually reduce well performance and result in increased energy usage. A pump that is too small for the intended use can wear out sooner and have inadequate water pressure at the point of use.

Due to possible high repair costs when selecting either above ground or submersible pumps it will be cheaper in the long term to select pumps of higher quality.

With most of us living in urban areas many of us don’t know how water is supplied to our home. We just go to the tap and turn it on and get water, as simple as that. But if you happen to go to any rural area you may be surprised by the fact that many of the households still use a well to fulfill their water needs. They may not be physically pumping water from the well but they use an mechanical equipment powered by electricity to get water out of the well. In simple terms, a well pump.

A water well pump is a pump that is used to extract water from a well. There are several varieties of water well pumps available in the market depending on the size of the well. You can choose a well pump based on the depth of the water in your well and diameter of the well. The depth of the well depends on the water table. In some areas it is quite simple to dig a well as water table is only few feet below the ground, where as in other areas you may have to dig deeper and deeper to bring water out. Water pumps serve the purpose of extracting water from your well, no matter how deep it is. These water pumps are broadly classified into two types jet pumps and submersible pumps. The type of pump you choose depends on the depth of your well.

Jet pumps work on the concept of suction. Suction creates vacuum or air pressure which helps the pump to take water to a height. The more pressure is created the more height water is lifted. Jet pumps come with a motor that takes care of this whole process of creating vacuum and lifting water to a height. Jet pumps come in two types, shallow well jet pumps and deep well jet pumps. Shallow well jet pumps are best used to bring out water from a well depth of 25 feet or less. This pump is placed above the well in a well house or some where on the ground. It brings out water with the help of only one pipe. Deep well jet pumps are used to extract water from a well depth between 25 feet and 110 feet. This is also placed somewhere on the ground and uses two pipes to extract and push water.

Another type of water well pump is a submersible pump. Even though you can use a jet pump to bring water from a 100 feet deep well, it is recommended to use submersible pumps to pump water from such wells. The type of submersible pump available in the market is deep well submersible pump. This can be used for wells of depth 25 to 400 feet. Water is pushed up with the help of a single pipe in these type of pumps. The only disadvantage of this is that, in case of a repair it has to be taken out from the well. But the biggest advantage is the depth it can serve. So, before buying a water pump carefully calculate the depth of your well and evaluate your pumping needs and decide on what pump suits your well.

Individuals that live in rural areas many times rely on well water. The homes may be too far out into the country, or the homeowners simply want their own water supply. Regardless of the reasons, people must be able to pull the water from the well. The most common method is a water pump. The pump can be submerged or aboveground. The depth of the well many times determines the type of pump used.

Water as it is drawn from the ground must be collected and dispersed. Generally, the water is pumped into a pressure tank that will then pump it to the desired location. The tank when the water pressure drops will activate the well pump to add more water. Well pumps as a practical matter cannot pump constantly. The use of above ground pressure tanks maintains a steady flow and keeps the well pump from running non-stop. The rising and the lowering of the water level in the tank creates the pressure. The pressure in many cases is enough to provide water to a home. Booster pumps can be added to generate more water pressure.

For shallow wells, ones less than 25 feet suction pumps are used. Suction pumps are installed above ground, and they draw water from the well. Suction pumps as they draw create suction or negative backpressure that pulls the water from the well. The pumps are generally only capable of pulling water from depths of 25 feet or less.

Wells deeper than 25 feet will need a submersible pump. The pump must be submerged in the water. The pump pushes the water to the surface. The pumps instead of creating negative backpressure create positive pressure that allows the pump to push the water. The pumps are operated by electricity. Wiring will have to be installed. The pump’s electrical components will have to be water tight along with any electrical connections.

Piston pumps employ the use of a piston rod, which is pumped up and down displacing water. Most hand operated pumps in well houses in years past employed a piston type pump. There are shallow piston pumps for wells less than 22 feet. The pump is mounted above the well and is ideal for small diameter wells. The pump can be powered by hand or electricity. Many hand-dug wells employed this type of shallow piston pump. Deeper wells require a deep well piston pump powered by electricity. The pumps can be used in wells up to 600 feet deep. The pump cylinder for deep wells is at the bottom of the well, and as the piston pumps, it pushes water up through a drop pipe.

Centrifugal pumps operate by creating pressure that forces the water through an opening. The pumps are not designed for deep wells and typically are used as booster pumps. Centrifugal pumps are used with jet pumps many times. Jet pumps simply put will draw water from the well from a small tube and force that water to push a larger volume of water up the drop tube. This type pump creates enough pressure to push the water to the surface. The pressure created is regulated by a series of different diameter tubing. Increasing the diameter of the tube decreases the water pressure.