How to Fix Pool Jets That Are Blowing Air

A pool with water jets blowing air can be frustrating, affecting both the pool’s cleanliness and its overall performance. This issue is often caused by air trapped in the plumbing or an issue with the pool’s circulation system. While it may sound complicated, fixing pool jets that are blowing air is typically a straightforward process.

In this blog post, we’ll guide you through troubleshooting steps and solutions to fix the problem of pool jets blowing air. Whether it’s an airlock, a pump problem, or an issue with the filtration system, we’ll cover all the common causes and how to address them.

Why Are My Pool Jets Blowing Air?

When your pool jets are blowing air instead of water, it’s usually caused by one of several issues, such as an airlock or a problem with the pool pump. These issues can prevent the proper circulation of water, leading to air being pushed through the jets.

Airlock: Air gets trapped in the plumbing system, causing a disruption in water flow.
Pump Issue: A problem with the pump or suction system may be preventing water from circulating correctly.

What Causes Pool Jets to Blow Air?

Pool jets blowing air are often caused by a few common problems, including air in the system, pump malfunctions, or filtration system issues. Understanding the root cause will help you find the appropriate solution.

Step-by-Step Guide to Fix Pool Jets Blowing Air

If your pool jets are blowing air, don’t worry—there are several things you can try to fix the issue before calling a professional. Below are some troubleshooting steps to help you get your pool jets working properly again.

1. Check for an Airlock in the Plumbing System

An airlock in the plumbing system is one of the most common causes of pool jets blowing air. When air gets trapped in the pipes, it can prevent water from flowing properly, causing air to come out of the jets.

How to Fix an Airlock:

Turn off the Pool Pump: First, turn off the pool pump to avoid causing any damage.
Open the Air Relief Valve: Most pool systems have an air relief valve located on the filter or pump. Open this valve to let the trapped air escape.
Prime the Pump: If your system has a priming plug, remove it to allow water to flow back into the system. Once the air is released, close the air relief valve and restart the pump.

2. Inspect the Pool Pump for Issues

A malfunctioning pool pump can also cause air to blow out of the jets. If the pump isn’t operating properly, it might be sucking in air instead of water, leading to the problem.

How to Check the Pool Pump:

Check the Pump Basket: Ensure the pump basket is free of debris. A clogged basket can restrict water flow, leading to air getting sucked into the system.
Examine the Pump Lid: Make sure the pump lid is tightly sealed. If there’s a gap or loose seal, air may be entering the system.
Inspect for Leaks: Look for any cracks or leaks in the pump housing or hoses. Air leaks can also prevent proper water flow, causing the jets to blow air instead of water.

3. Inspect the Pool Skimmer for Obstructions

A clogged or blocked pool skimmer can lead to poor water circulation, which can cause air to be pushed through the jets. If the skimmer is blocked with debris, water can’t flow into the pump properly, leading to air in the system.

How to Clear the Skimmer:

Check for Leaves or Debris: Remove any visible debris from the skimmer basket.
Clean the Skimmer Port: Inspect the skimmer port to ensure it’s not clogged. Clear any obstructions that could be restricting water flow.
Check the Skimmer Line: If the skimmer line is clogged further down the pipe, you may need a professional to clear it.

4. Check the Pool Filter for Blockages

A dirty or clogged pool filter can prevent proper water circulation, which may lead to air in the system. Filters need to be cleaned or replaced regularly to ensure optimal performance.

How to Clean or Replace the Pool Filter:

Backwash the Filter: If you have a sand or DE (diatomaceous earth) filter, backwash it according to the manufacturer’s instructions to remove debris.
Clean the Cartridge Filter: For cartridge filters, remove the cartridge and rinse it thoroughly with a hose to remove dirt and debris.
Replace the Filter Media: If the filter is still clogged after cleaning, it may be time to replace the filter media or cartridge.

5. Check the Pool’s Return Jets for Obstructions

Sometimes, the problem with air blowing from the pool jets may not be the plumbing system but an obstruction in the jets themselves. Check the return jets for any debris or buildup that could restrict water flow.

How to Clean the Return Jets:

Remove Any Debris: Check the jets for leaves, dirt, or other debris that may be blocking water flow.
Clean the Jet Nozzles: Use a soft brush to clean the jet nozzles gently. Be careful not to scratch the surface.
Adjust the Jet Flow: If the jet nozzles are clogged, the water may be diverted incorrectly, causing air to blow through. Adjust the nozzle to restore normal water flow.

How to Prevent Pool Jets from Blowing Air

Once you’ve fixed the issue of air blowing from your pool jets, it’s important to take preventive measures to avoid the problem in the future. Regular maintenance and proper care of your pool’s circulation system will help keep everything running smoothly.

1. Regularly Check and Maintain the Pool Pump

Ensure that the pool pump is functioning properly and that there are no leaks. Regular maintenance will keep the system running efficiently and prevent air from being drawn into the plumbing.

2. Keep the Pool Filter Clean

A clean filter ensures optimal water flow. Regularly clean and replace the filter as needed to prevent clogging and ensure efficient circulation.

3. Monitor the Skimmer and Return Jets

Keep the skimmer free from debris and ensure the return jets are clear of any blockages. This will help maintain smooth water flow and prevent air from entering the system.

Having pool jets that blow air instead of water can be a frustrating issue, but with the right troubleshooting steps, it’s usually easy to fix. By checking for airlocks, inspecting the pump and skimmer, cleaning the filter, and addressing any blockages in the system, you can restore normal water flow and keep your pool running smoothly.

Remember, regular maintenance and proactive care are key to preventing future issues with your pool’s circulation system. By following these tips, you’ll ensure that your pool stays clean, functional, and ready for swimming all season long.