where is air relief valve on pool filter

Where is Air Relief Valve on Pool Filter?

If you own a pool, keeping it clean and well-maintained should be a top priority. One important element of pool maintenance is making sure your pool filter is functioning properly. However, even the best filters can’t do their job correctly if they have air trapped inside. This is where the air relief valve comes in. In this article, we’ll cover everything you need to know about air relief valves and where they are located on pool filters.

What is an Air Relief Valve?

An air relief valve is a mechanism that allows air trapped in the filter to escape. When your pool filter is running, water is pumped through the filter media to remove debris and contaminants. However, air can get trapped in the filter and cause problems. If the filter isn’t filtering properly, it could be because of air pockets that need to be released.

Why Do You Need an Air Relief Valve?

Filters that are designed to trap dirt and debris often get clogged up, and when they do, they need to be cleaned or backwashed. This requires shutting off the pump and opening the filter valve. In this process, air can get trapped. Ensuring that air escapes the filter is important because it reduces the amount of pressure buildup inside the filter. Without an air relief valve, too much pressure can build up inside the filter, causing damage or leakage.

Where is the Air Relief Valve on Pool Filters?

Most pool filters have an air relief valve located at the top of the filter. The valve is usually a small plastic knob or screw located on top of the filter cap. As a general rule, cartridge filters and diatomaceous earth (DE) filters have air relief valves as they tend to trap more air than sand filters. Sand filters, however, sometimes have an air relief tube instead.

How to Use the Air Relief Valve

To use the air relief valve, you first need to turn the pump off. Next, locate the valve on top of the filter, and then turn it on. Air will be released through the valve, and you’ll hear a hissing sound. Wait for water to start flowing out of the valve, which indicates that all the air has been released. Once a steady flow of water is streaming out, turn the valve off.

When Should You Use the Air Relief Valve?

You should use the air relief valve anytime you clean or backwash your pool filter. This ensures that air is released and your filter can function properly. Additionally, you should use the valve any time you notice decreased water pressure or poor filtration. In such instances, it could be because there is an air pocket trapped in the filter. Releasing the air pocket will help improve water flow.

Conclusion

The air relief valve may be a small component, but it plays a crucial role in keeping your pool filter running efficiently. Without it, your filter could become severely damaged or even fail completely. Always make sure to use the air relief valve when cleaning, backwashing, or if you notice decreased water pressure. If you’re not sure about how to use the valve, consult the manufacturer’s instructions or hire a pool professional to assist you.