why is my pool filter spitting out sand

Why is My Pool Filter Spitting Out Sand?

If you're noticing sand coming out of your pool filter, you might be wondering what is causing this issue. Sand in your pool water can be unsightly and even uncomfortable, so it's important to get to the bottom of the problem. Here are some potential reasons why your pool filter is spitting out sand and what you can do to fix it.

1. A Broken or Worn-Out Laterals

The laterals in your pool filter are the small, plastic tubes that allow water to flow through while catching debris and sand. If one or more of these laterals break or wear out, they can begin to allow sand to pass through the filter and back into the pool. To check for this issue, you will need to remove the filter from the filter housing and inspect the laterals for any signs of damage or wear.

2. Overfilled Pool Sand Filter

If you recently added too much sand to your pool filter, it may be overfilled, which can cause it to clog and spit out sand. The recommended amount of sand for your pool filter should be stated in the manufacturer's instructions or user manual. To correct this issue, you will need to remove some of the excess sand from the filter.

3. Faulty Multiport Valve

The multiport valve on your pool filter is responsible for directing the flow of water into different areas of the filter, depending on the function you want to achieve. If this valve is faulty or malfunctioning, it can cause sand to be pushed back into the pool. To check for this issue, you will need to inspect the valve for any cracks, tears, or signs of wear.

4. High Pool Water Flow

If you have overly high water flow in your pool, it can cause the sand to be pushed through the filter too quickly, which can result in sand in your pool water. To correct this issue, try reducing the water flow or adjusting the pool pump timer to optimize water flow.

5. Old Sand in the Pool Filter

Over time, sand in your pool filter can become too old and worn out, which can cause it to break down and pass through the filter. If you suspect that the sand in your filter is old, you will need to remove it and replace it with fresh sand.

In conclusion, there are several potential reasons why your pool filter may be spitting out sand. By identifying the cause of the issue, you can take the necessary steps to fix it and get your pool water clean and clear once again. If you're unsure about how to troubleshoot or fix the issue, it's always best to seek the help of a professional pool maintenance expert to avoid causing any additional damage to your pool equipment.