Preventing air lock in pumps, especially submersible pumps like the Little Giant 6 Series, primarily involves ensuring proper venting and maintaining a clear pathway for water flow. Here's how:
Understanding Air Lock
Air lock occurs when air becomes trapped inside the pump or the pipes connected to it, preventing the pump from priming and moving water effectively.
Methods to Prevent Air Lock
Here are several ways to prevent air lock in pumps:
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Ensure the Relief Hole is Clear: According to the provided reference to the YouTube video "How to Prevent Airlock on the Little Giant 6 Series", you must make sure the pump's factory-installed relief hole is free of debris. This hole allows air to escape, preventing air lock.
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Submerge the Pump Properly: Make sure the pump is fully submerged in the fluid. If the pump intake is above the fluid level, it will draw in air.
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Bleed the Air from the System: Some pumps and systems have bleed valves that allow you to manually release trapped air. Open these valves until water flows out, indicating that the air has been purged.
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Check for Leaks: Inspect all connections and fittings for leaks. Even small leaks can allow air to enter the system.
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Use a Foot Valve: In suction lift applications (where the pump is above the water source), a foot valve at the end of the suction pipe helps maintain prime by preventing water from draining back into the source when the pump is not running.
Practical Tips
Here's a table summarizing preventative measures:
| Prevention Method | Description |
|---|---|
| Clear Relief Hole | Ensure the pump's factory-installed relief hole is free of debris. |
| Proper Submersion | Fully submerge the pump to prevent air intake. |
| Air Bleeding | Use bleed valves to manually release trapped air. |
| Leak Inspection | Regularly check connections and fittings for air leaks. |
| Foot Valve (Suction Lift) | Install a foot valve to maintain prime in suction lift applications. |
By following these guidelines, you can minimize the risk of air lock and ensure your pump operates efficiently and reliably.
