Submersible Pump Information
Click on any of the buttons below to see curves from various submersible pump manufacturers. Ideally, pick a pump that will deliver the proper amount of water at 50 psi on the curve. On multi-party wells, a general rule of thumb is to provide 10 GPM to each of the first 2 homes on the well and 5 GPM to each additional home:
- 1 Home = 10 GPM
- 2 Homes = 20 GPM
- 3 Homes = 25 GPM
- 4 Homes = 30 GPM
- 5 Homes = 35 GPM
- 6 Homes = 40 GPM
- 7 Homes = 45 GPM
- 8 Homes = 50 GPM
- 9 Homes = 55 GPM
- 10 Homes = 60 GPM
- 11 Homes = 65 GPM
- 12 Homes = 70 GPM
- 13 Homes = 75 GPM
- 14 Homes = 80 GPM
* When in doubt, oversize the pump's output. Especially for monster homes or neighborhoods with much lawn irrigation.
* When possible, don't choose a pump that is at the "end of its curve" - performance will drop drastically if you under-estimate the pumping level.
* Anything beyond 14 Homes is considered a Public Water Supply and will need approval by the MDH.
HOW TO FIGURE TDH (Total Dynamic Head):
Pumping Level (Static Water Level + Drawdown at desired GPM Flow) + Pressure (2.31 x PSI - so figure 115.5' for 50 psi) + friction loss (for properly sized pipe, figure 11' per 100' setting) = TDH
Example:
Static Water Level = 120'
Drawdown at 20 GPM = 20'
50 PSI = 115.5'
Pump Setting of 189' (1.89 x 11) = 21'
Total Dynamic Head at 20 GPM & 50 PSI = 276.5' (use pump curve to find pump that most easily provides 20+ GPM at 277' at the available HP)
PUMP CURVES
Using the above information, click on the group of pump curves below that best fit our customer's needs:
