| Term | Main definition |
|---|---|
| Performance Curve | A performance curve is a diagram which relates to the performance of a pump. |
| Pressure | Pressure is the ratio of a force over a given area, which the force is applied to. When dealing with water pumps it is usually measured in psi or kPa. |
| Pressure Tank | A pressure tank is a vessel with an internal bladder which holds water under pressure. |
