rise of 55′?
Submersible Pump, 12 Gpm 3/4 Hp 2 Wire

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Horsepower: 3/4. Flow: 10 GPM @ 100` with 50 PSI discharge pressure.
Kirloskar 12.5 hp Openwell Submeresible, Maximum Discharge Flow: 1001-5000 LPM.
Total Horsepower: = Bowl horsepower + Thrust HP loss + Cable horsepower loss = 98.54 + 1.39 + . 17 = 100.10 H.P. (100 H.P.
Calculating the desired flow rate of your pump is quite easy. Let`s say, you want to transport 300 litres of a fluid every 30 minutes, then your pump system has to transport 300/30 = 10 litres per minute or 0.167 litres per second. This is the desired flow rate, which is usually calculated before the installation.
The 3/4 HP 2873G-13 submersible well pump provides efficient water delivery from depths of up to 200 ft.
You can check the diameter of the pump and then dig the borewell. The bigger the pump, the bigger the borewell. You can also fit a small submersible into a larger borewell but not vice versa. These were some of the key factors that a submersible buyer should consider.
Use the pump flowrate calculation: Divide the container volume by the length of time it took to fill up to get the flow rate. 5 gallons / 1 minute = 5 gallons per minute. 5 gallons /30 seconds (0.5 minutes) = 10 gallons per minute.
Pumping power is calculated as the volume of the fluid per unit time (flow capacity) times the density of the fluid times the gravitational constant times the pumping head (vertical distance to be pumped). Pumping energy is simply power multiplied across time. 100kW of power for one hour is 100kWh of energy.
Well pumps use a huge amount of energy every time they start up. Well pumps should be sized by a professional. It is not uncommon for people to have 3/4 hp pumps installed in their wells equaling 30 minutes of pumping per day or 350 kWh/yr, while a ½ hp pump, which uses only 240 kWh/yr, would be sufficient.
This is the efficiency of the pump in turning input shaft power (from the motor) into useful power output to the fluid (Hydraulic Power), it is calculated using the following formula: Pump Hydraulic Efficiency (%) = Pump Hydraulic Power Output (kW) x 100 / Pump Input Shaft Power (kW).
3/4 HP Submersible Sump Pumps

A pump of this size can handle a high vertical lift of 20 to 30 feet and/or horizontal pipe running between 150 to 250 feet.

In a 2-wire pump, the relay and start capacitor is located IN the pump itself and the pump is in the well. In a 3-wire pump, the relay and start capacitor is NOT in the pump but usually in your basement inside a Control Box. The pump, of course, is still in the well.
Note: Never set the cut-off pressure setting above 60 psi.

Pressures higher than 60 psi can damage your pipes, fittings, and switches. This damage can lead to plumbing failure and costly leaks. If the pressure is set at 80 psi, it`s very possible the pump will be unable to reach the cut-off pressure.

Submersible pumps are used to pump out water to a minimum depth of 15 cms or from open water to supply an incident ground with water.
Oversizing or undersizing a pump can have a serious impact on the system, which is why using an accurate operating point for this process is crucial. If the chosen pump is undersized in terms of power, a lower flow rate than required will be achieved in the system.
A 1 HP submersible well pump will require a 2.5 KW internally regulated generator to operate the pump. A 30 amp breaker means the pump is smaller than 2 hp will use ~13 amps/2300 watts during operation and will require a 4 KW internally regulated generator to operate the pump.
Formula: GPM * PSI / (1714 * efficiency) = HP.
The pumping capacity of the centrifugal pump can be achieved by either increasing the length of the pumping system or trimming of the impeller diameter. The diameter of the impeller has an impact on the performance of the pump [12]. The impeller trimming adjusts the centrifugal pump head and flows to the actual needs.
A 1 horsepower pool pump with 1.5-inch plumbing lines may filter around 60 gallons per minute.
1 GPM equals circa 3.79 LPM, where GPM meaning is gallons per minute, and LPM means liters per minute. To convert US gallons to liters, multiply by 3.78541.
For most single-family homes, a minimum flow of 6 GPM is suggested from a well or spring. This flow would provide 360 gallons of water each hour, which would be sufficient to meet most home water peak demands.
Minimum Pump Size

Water needs to circulate through the filter at least once every 2 hours. This means that if you have a 1,000-gallon pond, you need a pump that can produce at least 500 gallons per hour or GPH. If you have fish, then it is best to double the pump`s capacity to ensure that your water stays clean.

Pump power calculation

The pump power is shown in the pump curve or in the specifications of the pump. The absorbed pump power, also called shaft power, is given in kW and can be easily calculated using the following formula: P = (Q x H x SG) ÷ (η x 3670) P = pump power kW. Q = pump capacity m3/h.

A power level of 1 hp in submersible water pumps is approximately equivalent to 746 watts (W) or 0.746 kilowatts (kW).

Discover Relevant Questions and Answers for Your Specific Issue

the most relevant questions and answers related to your specific issue

I have a jacuzzi 1/2 hp submersible well pump. Does this need any regular maintainance to keep it happy.
ANSWER : No preventative maintenance is necessary. However, a happy pump always has water above it and should not pump sand. If the water level in the well is below the pump/motor they will overheat. If this is a problem your local pump company can install a module to protect your pump from this type of event.Please rate this answer.

Pump was clogged it was taken apart to be cleaned and the oil spilled out. what type of oil is used in a 1/4 hp sump pump
ANSWER : 10 wt. non-detergent/non-foaming oil.


We have a Flotec 3/4 HP submersible pump, it was already here when we moved in, we have lived here for 3 yrs, so we dont know how old it is. After living here for 2 yrs, it started to get very noisy, like a groaning noise. We replaced it w/ a l/2 HP Wayne(our mistake) We got water in the basement b/c the wayne pump quit running. We put the Flotec back on. Trying to find a replacement, but stores are all out. Question is, do you think we can rely on the Flotec that is making the strange noises? Thanks, Chris
ANSWER : Take strainer off to see if fravel stucj. if not, motor bearing may be shot. I would replace. I like wayne.

My utility pump hums but the impeller doesn’t turn,if I turn the impeller by hand it sometimes will turn.Can this be repaired?
ANSWER : Probably easier and cheaper to just replace the pump

Sump pump hums and then kicks breaker. Will not pump. I cleaned everything, still have problem
ANSWER : Pump motor is jammed causing overload and resulting breaker trip. Try to turn the pump shaft by hand, it should be very easy to turn. If there’s any resistance check for blockage.

All wiring disconnected need wiring diagram – Simer 1 Hp 230 Volt 3 Wire Submersible Well Pump, 4"
ANSWER : Http://www.simerpump.com/pdf/SIM280.pdf

This is a full manual, check your model number, though.


Little Giant Pump – dialectic oil to use
ANSWER : Ck your local yellow pages for an electric motor repair shop they should be able to get silicone oil to add , but in a pinch ive used full synthhic auto transmission oil that works too

I am getting oil out of the pump. Can this be a leak of coolant and can it be fixed.
ANSWER : I am sorry to hear your getting oil, this is not a good thing. If you remove the pump from water and disconnect it from any power source, try removing the lower housing and take a look around the impeller if you can. If the leak is coming from around the edge of the main housing your in luck, it is probably the main seal that can be replaced without too much trouble. If the housing is cracked or leaking near the bearing I am sorry to say it would be best to start looking for a replacement pump.