Water pumps used in many households to meet the needs of flowing water. In general, the pump used to drain the water from wells directly into the faucet, or from new wells into the reservoir tank of the tank water then flows by gravity toward the faucet. To set the automatic pump operation in accordance with our needs required control equipment pumps working.
In general there are two types of control devices that complement pump is widely used in households, namely pressure switch (operates on water pressure at the pump output) and level control (based on the water surface elevation inside the reservoir tank). Level control is only compatible with systems that use the reservoir tank before the water is distributed to users, because a vest appliance must be inserted into the tank. Second image control equipment such as below. Level control was left of the right switches and pressure switches.
The second working principle is the same tool switches (breakers and electrical connector). The difference is style lever to open liaison is the gravity current is a float for level control, while for the pressure switch is the force due to water pressure at the pump output. But the effect on pump operation is different. When using a level control, a new pump will die if the second buoy floating on the surface of the water levels and live longer depending on when the second buoy, which means the water level under the two buoys which depends on switchnya. So life and death pump (start-stop) are rare. Meanwhile, start-stop pressure switch resulted in more often because once the pressure drop due to pump out the open faucet, the pump will start and will die shortly after all the flow out the pump was closed. Consequently the age of pressure switch is usually shorter (faster damaged).
In conclusion, the selection of settings for pump operation depending on the installation of water systems are designed. For that use the tendon with a distribution tank by gravity recommended use level control. Meanwhile, for which only a plumbing installation directly from the source to the user, there is no choice but to use the pressure switch with the consequences of rapid deterioration if not equipped with a pressure tank to reduce the frequency of start-stop.