Pump Sizing Questionaire:
Answer these questions to the best of your ability:
You may fax or email answers to us so we can help you choose the best pump for your application. (Fax = 806 828 6414)
1. If a pump has been pulled out of your well, what was its horsepower rating? If known, what was its series number or impeller count?
2. How deep is your well? How many gallons per minute (gpm) can it produce?
3. If known, how many feet of water is in your well without a pump in operation? (Your driller may be able to help you with questions 2 & 3).
4. If known, how many feet of water remained in your well during the operation of your last pump?
5. How many gallons per minute do you need to see at the application (house, business, barn, garden, field, etc)? Click here to see a water usage / needs chart.
(Your well must be capable of this production, of course).
6. What is the maximum pressure (in psi) that you need to see produced (at the application)?
7. What is the distance in feet of the wellhead to the application?
8. Elevation (in feet) uphill(+) or downhill(-) from wellhead to the application?
9. What size of pipeline (in inches) will transport the water to the application?
10. What is the voltage and phase of your power source?
11. How far from the wellhead (in feet) is the breaker panel or disconnect that operates the pump? How far (in feet) from the breaker panel or disconnect is the electric meter?
12. Has the wire from your power source already been installed to the wellhead from the breaker panel or disconnect? What gauge wire was used? What gauge wire was run from the electric meter to the breaker panel or disconnect? Was these wiring runs copper or aluminum? If these wiring runs have not been installed, the total distance from the electric meter all the way through the breaker panel or disconnect then downhole to the pump will dictate what gauge wiring you will use for each of the various runs so the pump is not starved for electricity.
Note:
Questions 1,2,3,4,5 - helps determine what your last pump produced or what will your new pump need to produce (in gpm) without pumping the well dry.
Questions 6,7,8,9 - helps determine the total dynamic head (in feet) your pump will need to be able to overcome after depth, pipeline friction loss, elevation difference, gallons per minute, & pressure is considered.
Questions 10,11,12 - helps determine down-hole wire gauge.
Some of the ways that pumps die:
Pumping off (too large a pump, pumping more water than well can make).
Rapid Cycling (snapping on & off as when a pressure tank bladder fails or a standard tank waterlogs).
Electrical problems - high & low voltage, power surges, wiring or splice failure & lightning strikes.
Excessive motor & pump loads (asking a motor or pump or perform outside of it's intended design).
Installation errors involving incorrect, mislocated, or missing devices.
Wrong pump for the job, too small gauge wire, tank too small, etc.
Over heating motor - as in the case of sand covering the motor, or no water movement.
Well conditions - pumping abrasives and materials other than clear, clean water.
Sand gradually kills every pump by grinding down the impellers and bearings over time.
Old age - pump has simply worn out (we say it was used too much when it was new - LOL).
Important note: Pumps are not covered by warranty for any of the above reasons of pump failure.
Only defects in materials and workmanship are covered by pump & motor warranty.
