how to backwash pool filter pentair


Author: Poolking - Swimming Pool Equipment Manufacturer

How to Backwash Pool Filter Pentair

If you're a pool owner, you know the importance of keeping your equipment in top-notch shape. One of the most critical components of your pool system is the filter. Without proper maintenance, your filter can become clogged with debris, leading to poor water quality, reduced circulation, and even damage to the pump. The good news is that backwashing your Pentair pool filter is a simple and effective way to keep your pool clean and clear.

In this article, we'll go through the step-by-step process of backwashing your pool filter and help ensure that your pool is always working at its best.

What is Backwashing?

Backwashing is a simple process of reversing the flow of water through your pool filter to remove debris and other contaminants. During normal operation, water flows into the filter, passing through a series of pleats or grids that trap dirt, leaves, and other debris. Over time, the debris accumulates, clogging the filter and reducing flow. When you backwash your filter, you reverse the flow, loosening and flushing away the debris.

When to Backwash

There isn't a set time frame for when to backwash your pool filter. Instead, it's essential to monitor your filter's pressure gauge. When the pressure gauge reads 8-10 pounds per square inch (PSI) above its normal reading, it's time to backwash.

How to Backwash Your Pentair Pool Filter

1. Turn off your pool pump.

Before you begin backwashing your filter, ensure that the pump is turned off. You don't want water flowing into the filter while you're working on it.

2. Turn the backwash valve to ''backwash.''

Find the backwash valve on your filter's multiport valve and turn it to the backwash setting. Depending on your filter model, you may need to push or pull a lever to change the valve's position.

3. Attach your backwash hose.

Connect your backwash hose to the valve's waste port. This will carry the dirty water out of your pool and into a drain or other suitable location. We recommend directing the water away from your pool deck and any plants or landscaping to avoid damage or contamination.

4. Turn on the pump.

Turn on your pool pump and let it run for 2-3 minutes or until the water in your backwash hose runs clear. This is an indicator that the water is free of debris.

5. Turn off the pump.

When the water in your backwash hose runs clear, turn off the pump, and return the multiport valve to its original position.

6. Rinse the filter.

This is an optional step that helps ensure that any remaining debris is rinsed away from the filter. Once you've returned the valve to its original position, turn the pump back on, and move the valve to the rinse setting. Let the pump run for 30 seconds to a minute.

7. Return the valve to its original position.

After rinsing, turn off the pump again and return the valve to its original position. You're done! It's that simple.

Final Thoughts

Backwashing your Pentair pool filter is a critical part of pool maintenance. Not only does it ensure that your pool is clean and clear, but it also helps prolong the life of your filter and pump. Remember to backwash when your filter pressure rises 8-10 PSI above its normal reading, and always direct your backwash water away from your pool deck and landscaping. With these tips in mind, you can keep your pool running smoothly all season long.


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