Do You Have to Prime a Submersible Pump?
Do You Have to Prime a Submersible Pump?
Unlike jet pumps or other types of pumps designed for above-ground use, submersible pumps are submerged in the water source, which significantly changes the priming dynamics. Because submersible pumps operate underwater, they are generally self-priming. When properly installed, these pumps can push water up from below without requiring any additional priming process. Their design includes a hermetically sealed motor that is situated below the water level, allowing them to operate effectively without air gaps.
However, there are a few considerations to keep in mind. If a submersible pump has been removed from the water or if the installation is not done correctly, air could still enter the system. In such cases, the pump may struggle to achieve lift, leading to a malfunction. Therefore, ensuring that the pump is adequately submerged and that any air entrapped in the hose is purged is crucial for optimal performance.
Furthermore, if a submersible pump is used in a situation where the water level can fluctuate significantly, like in an open well, it is essential to ensure that the pump is always submerged. Running a submersible pump dry—meaning it is not entirely underwater—can cause severe damage to the motor and impeller. This is one of the reasons people might mistakenly think they need to prime a submersible pump; in cases of low water levels, checks should be made to ensure that the pump remains submerged.
In summary, submersible pumps generally do not require priming under normal operating conditions, as they are designed to function underwater. Users must ensure that the pump remains properly submerged and free from air to maintain functionality. For best practices, always follow the manufacturer’s guidelines to avoid potential issues related to water levels and pump operation. By properly managing the installation and monitoring water levels, submersible pumps can operate efficiently with minimal maintenance.