|Click here for information about Pressure Tanks.|
To ensure adequate water pressure, well water is stored inside your building in a pressure tank. Normal water pressure is between 40 and 60 psi (pounds per square inch).
As water continues to run, the volume of water in the pressure tank drops, which also lowers the water pressure.
When the pressure drops below 40 psi a pressure switch activates the water pump system. The submersible water pump pumps water into the pressure tank until normal pressure is reached and the pump automatically shuts off. A safety valve installed on the pressure tank is designed to release pressure should it exceed 75 psi. Click here to see a demonstration of this pump cycle process.
Pump Selection & Installation
Before Cushing & Sons recommends a pump, we will factor in:
Because Cushing and Sons provides well-to-faucet water systems by licensed, certified and experienced technicians, we can guarantee the performance of the system and its components.
We have believed for years that the best items to recommend to our customers are products that are time proven and are commonly available to the trade. We recommend items such as Franklin motors and control boxes, Square D pressure switches, Flomatic check valves, and top pump brands that are locally available in New England.
We do this for two reasons, the first is that the parts are not proprietary, so in the event we are not available to work on your system, many others can. The second is that these top performing products allow us to offer long warrantee periods on our installations because of the demonstrated long service life.
How water pumps works
Cushing & Sons installs complete systems. We use only high quality components - not the parts you can buy at your local "big box" discount retailer. The difference is that a pumping system installed by Cushing & Sons is dependable, fully guaranteed and installed by our installation and repair staff.
A submersible water pump is comprised of a series (usually 10) of small impellers, stacked horizontally on top of each other. When activated, the impellers rotate at approximately 3,450 RPM moving the well water up the drop line and into the pressure tank. Because the water pump operates electrically, wires must run down into the well and be connected to the pump. All wiring connections are permanently sealed to avoid voltage leaks and short circuits. A torque arrester and cable guards are installed above the pump to prevent wires from twisting and chafing during pump operation. The torque arrester extends the life of the pump by preventing voltage leaks and short circuits that would be caused if the wire coatings were compromised.
In 2008, we installed our first ever solar powered water pump system. These new systems, offered by GRUNDFOS, actually work better than advertised! Pumps have been observed to be pumping with cloud cover. They are expensive, but with the enhanced lightning protection and extended warrantees, we recommend them with entusiasm.
The systems pump into a bulk tank or other holding area, and the water is drawn out as needed. These systems can pump from hundreds of feet down in a well. They are a good fit for ponds, agricultural needs and off-grid residences.