why is my pool filter blowing bubbles

Why Is My Pool Filter Blowing Bubbles?

As a pool owner, there are a few common issues that you might come across when it comes to maintaining your pool's filtration system. One of which is when you notice your pool filter blowing bubbles. It is a common issue, and depending on the severity of the problem, sorting it out could be a simple or a more complicated task. This article will not only highlight the reasons why your pool filter is blowing bubbles but also provide tips on how to fix the issue.

Why is my Pool Filter Blowing Bubbles?

1. Air Leak

The pool filter blowing bubbles is generally a result of air getting into the system. In most cases, the air comes in through an air leak. This could be result from a cracked or loose pipe or a leaking o-ring seal. If you notice a pool filter blowing bubbles, it is crucial that you check for air leaks.

2. Broken Multiport Valve

A multiport valve to a pool filter is like a switch and helps direct the flow of water. It's a typical piece of pool equipment that could be subject to breaks from time to time, causing the filter to blow bubbles. When the valve breaks, water can flow in the wrong direction, and air could bring into the filter system through the skimmer.

3. Clogged or Dirty Impeller

The impeller is a significant component of a pool filter, which helps to ensure water circulation - this also includes other components that move water like the pump. When debris gets stuck in the impeller, it struggles to pull water from the pool into the filtration system which causes it to suck in air that enters the system.

4. Blocked Drain Plug

Your pool filter comes with a drain plug that you can use to drain excess water out of the filter. This drain plug could get blocked with debris and/or hair, and if not checked regularly, could be the source of why your pool filter is blowing bubbles.

5. Dirty or Damaged Filter Cartridge

If you notice your pool filter is blowing bubbles, your filter cartridge could be one of the reasons. Filters that are due for cleaning or filters that have reached their limits could cause the filtration system to blow bubbles. A cracked or damaged filter cartridge could also contribute to this issue.

Fixing the Problem

Depending on the severity of the issue, there are a few methods you could opt for when seeking to fix the problem.

1. Check for Leaks

To stabilize your system and stop your filter from blowing bubbles, you need to start by checking for air leaks. Check your pump's lid and O-ring, your pool filter cartridges, and your pool's skimmer - to rule out leaks. Ensure that the O-ring seals are adequately lubricated and snug in place. Replace any that are damaged or compromised.

2. Clean Your Filter Cartridges

If your filter cartridges are extremely dirty or have reached their limits, you might find that they are the sole cause of your pool filter blowing bubbles. Thoroughly clean them and rinse them off using a hose. If you find that they have reached their limits and are no longer functioning properly, consider replacing your filter cartridges.

3. Replace Damaged Parts

Replacing damaged or broken parts, such as the multiport valve, pool pump, or filter cartridges, if your pool filter is blowing bubbles will do wonders.

By following the steps specified in this article, you now have a basic understanding of why your pool filter is blowing bubbles and how to resolve this issue. If after applying these tips, the problem persists, you may choose to reach out to a pool expert or professional for further assistance. Remember, staying proactive about your pool's maintenance is essential in extending its life and preserving your safety, enjoyment, and investment.