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Question:

how many consequence hours can I leave my water pump working?

and how do I get it to work 24 hours a day?and on the pump there is written: 2 A, and on another part: 220-240 Vdoes that mean its wattage is 440-480Watt?

Answer:

Hey Don ..did you mean consecutive hours..if so. Here is how to do it..If there is fluid to be pumped there is sometimes a controller that will ask the pump to stop when it reaches low level . And again ON when it senses high level. Find this device, if one exists and either defeat it mechanically or wire around it electrically.Either is pretty simple. NOW that i have told you how to get it to run all the time. I though I might mention a timer..A timer, in series with your pump, will cut it off and give the liquid level a chance to rise as well. Timers can be defeated the same as all other protective devices,, My question is Are you sure this is what you want to do ? The plug on the end of the cord ,it must be a small pump if only 2 amps, should be your only control .If it has an auto off feature it's there to save your pump from burning the barn down ,so to speak, Why not take another look at your application. if you do have an endless fluid supply ,like a closed loop trickling fountain, remember those evaporate if make up water is not added. Sometimes though you need a pump to run 24-7 in which case just fool the controller..Of course the human is the true controller... :) Well I have armed you with enough info to get by on this please do so safely. From the E...
You are correct Amps x Volts = watts and since there are about 750 watts per Hp then you have a 2/3 Hp motor. Water pumps can be either submerged in the well bore hole or located top side. A top side well pump relies on the air around it to cool the motor. THe motor may not be rated for continuous duty (see name plate on motor) and may only be rated for a limited amount of time it can be run before it needs a cool down period. (Typically motors are rated for continuous duty) Submersible well pumps are located under water in th well and use the water in contact with the motor housing to cool them. Cooling is thus related to the water flow around the motor and the availability of water. Normal well pump usage for a home is for brief periods when water is actually being used and to maintain system pressure. So unless you are constantly watering your lawn your pump should cycle on and off as necessary. Continuous running is a sign that there is a problem such as a leak, worn pump not achieving proper pressure, or pressure switch setting or similar issue not allowing proper shutdown. If you have a submersible well pump it will be very difficult to tell when it is running unless you can hear the motor contactor open and close or have an indicator light. A properly operating water system will pressurize an accumulator storage tank (water pumped into a tank which contains an air bladder that can be compressed). Once the tank is pressurized the pump shuts off and stays off until the pressure in the tank drops. Pressure drops when you use water or if the water leaks back into the well. At which time the pump runs again and tops off the tank. So in a properly operating system shutting off the well at night won't save you much because the pump should not be running. However if you have a leak and the pump is running a lot you can secure the power to the pump at night until you can get the system repaired

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