You hire professionals for your home
electrical, plumbing and heating systems.
Why should your well be any different?

HOW A WATER SYSTEM OPERATES

Once the well is drilled, cased and gravel packed the equipment will be installed. First, the submersible pump goes in. The pump is set on drop pipe, which along with many miscellaneous items will deliver the water to the top of the well. MDC installs the highest quality pumps available from several different manufacturers. As each brand can have different performance curves, we choose the pump that will best meet the application as determined in the design stage. Occasionally the actual well conditions will warrant resizing the equipment.

A submersible pump works by passing water through a series of stages, each one consisting of an impeller, diffuser and the bowl in which they are seated. The more stages - the bigger the pump and the farther it will be able to push the water. The width of the impellers determines pump capacity (gpm). The diameter determines how high the pump can push the water. The horsepower of the motor is determined by the volume of water and the working pressure of the system.

CONSTANT PRESSURE SYSTEMS: Developments over the last few years in the pump industry have introduced “constant pressure” systems to the market. The control system allows the motor to work with variable speed technology - the motor will speed up or slow down based on your use (with one faucet open the motor will turn a little bit, as other fixtures are opened the motor will speed up to meet the demand).  These systems have several advantages, first there is no fluctuation in pressure while the system is running as can be seen with fixed speed pumps. Second, a smaller pressure tank can be used which is also less expensive and saves space.

FIXED SPEED SYSTEMS: Once the water is out of the well, it will go to the pressure tank . The primary function of the pressure tank is the automatic operation of the water system. It does this by using stored air pressure inside a sealed diaphragm that will provide water under pressure even when the pump is not running. This keeps the pump from turning on and off (cycling) every time water is used. Pressure tanks are sized based on the output of the pump and end use. Ideally the tank should have, in drawdown capacity (stored water), at least 2 times the output of the pump (a 10 GPM pump should have at least 20 gallons of drawdown in the pressure tank).

Again, MDC installs the highest quality tanks available from several manufacturers. Physical dimensions and vendor availability are generally factors in deciding which brand is used. Each manufacturer may have a different design, but the tanks work on the same principal.

Click on Eqipment Options above for additional choices in system design.