What priming means
Your pump needs a full column of water to move water. When it pulls in air instead, it runs without circulating, and the pool can turn cloudy or green quickly. The good news: most priming problems come down to a few simple causes.
The 6 most common causes
Always turn off power to the pump before opening the lid or baskets.
- Low water level: if the water is below the middle of the skimmer opening, the pump draws air. Top it off first.
- Full baskets: a packed skimmer or pump basket starves the pump of water.
- Pump lid or O-ring: a cracked lid or dry, worn O-ring lets air in. A little pool-safe lubricant or a new O-ring often fixes it.
- Valves in the wrong position: a closed or partly closed suction valve can stop the pump from pulling water.
- Air leaks on the suction side: loose fittings, worn unions, or cracked pipe before the pump can let air in.
- Clogged impeller: debris can get past the basket and block the impeller, reducing flow.
Quick checks you can try
With the power off, top off the water, empty both baskets, check the lid O-ring, fill the pump pot with water, close the lid tightly, and restart. If the pump still won't prime within a few minutes, shut it off. Running a pump dry can damage the seal and motor.
When to call a pro
If the simple fixes don't work, the cause is usually a hidden air leak, a clog, or a worn part. That's where a quick professional diagnosis saves time. Because we're local, we can often come the same day and get you swimming again.