A common issue with pool pumps is difficulty priming, often caused by what is referred to as an air lock. This happens when air gets into the suction line to the pump, making it difficult for the pump to pull in water. Pool pumps are designed to push in water, not air, which can cause the pump to struggle to get primed. Although often the pump will eventually get primed on its own, the strain on the pump can cause damage to the pump and the fittings. It’s better to get the pumped primed quickly, then find out what is causing the air lock in the first place.
Causes Of An Air Locked Pool Pump
An air lock in the pool pump line generally happens when the water level has dropped for some reason. If the water level drops below the inlet valve for the pump, air can get into the line, causing the air lock. The most common cause of this is when the pool has been drained and refilled, or has lost water due to leaks, excessive outdoor temperatures or other factors. If the pool is losing water, there could be bigger issues than just the pump not priming; there could be a leak in the pool lining which needs to be fixed immediately.
One other cause of pumps repeatedly becoming air locked is poor plumbing. Some pumps have a three-way valve which can cause air locks if it was originally plumbed in too high during installation. While the pump may eventually prime, it must work hard to do so, creating heat which will cause damage in the long run.
If you are having issues with your pool pump getting air locked, call in a professional pool service technician to inspect your pump and pool. There could be a simple solution to get your pump working correctly before it needs to be replaced altogether.
Posted on behalf of Premier Pool Enterprises
