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how do i backwash my pool filter


Author: Poolking - Swimming Pool Equipment Manufacturer

Have you ever looked at your pool water and noticed that it looks cloudy or dirty? If so, it’s probably time to clean your pool filter. In this article, we will guide you on how to backwash your pool filter so that your pool is crystal clear and ready for swimming.

What is backwashing?

Backwashing is the process of cleaning your pool filter by reversing the flow of water through it. This is essential for your filter to function optimally and keep your pool clean.

When should you backwash?

It is recommended to backwash your pool filter when the pressure gauge reads 8-10 pounds higher than its normal, clean operating pressure. If you’re unsure, you can also visually inspect your filter to see if it needs cleaning. But as a general rule, aim to backwash your filter every 4-6 weeks.

Subheading 1: Preparing for Backwashing

Before you get started on backwashing your pool filter, make sure you have all the necessary tools and equipment. You will need:

- Safety Glasses

- Pool Skimmer

- Pool Vacuum

- Pressure Gauge

- Backwash Hose

- Wrench

Once you have everything you need, it’s time to prepare your pool and filter for backwashing.

Subheading 2: Turn off your pool pump

The first step is to turn off your pool pump to prevent any damage to your pool filter. This will also stop water from flowing into your pool while you’re backwashing.

Subheading 3: Locate the filter valve

Next, locate the filter valve on your pool equipment. This is typically labeled as “filter,” “backwash,” “rinse,” “waste,” or “closed.” It’s important to know where this valve is located, as it will control the flow of water through your pool filter during backwashing.

Subheading 4: Connect the Backwash Hose

Now that your filter valve is located, connect the backwash hose to the waste port on the valve. This is where all the dirty water from your pool filter will go.

Subheading 5: Backwash

Turn on your pool pump and select the “backwash” option on your filter valve. Observe the backwash sight glass for about 2-3 minutes, or until the water in the sight glass becomes clear. This indicates that most of the debris has been removed from the filter.

Subheading 6: Rinse

Once you have backwashed your filter, it’s important to rinse it to flush out any remaining debris. To do this, turn off the pump and set the valve to “rinse.” Turn the pump back on for about 1-2 minutes, or until the sight glass shows clear water.

Subheading 7: Filter

Once you’ve backwashed and rinsed your filter, turn the pump off and set the valve back to “filter.” Turn the pump back on and you’re ready to go! Your filter is now clean and ready to keep your pool sparkling all summer long.


By following the steps outlined in this article, you’ll be able to successfully backwash your pool filter and keep your pool clean and safe for your family and friends to enjoy. Make sure to keep up with your pool maintenance, including regular backwashing, so that your pool remains a beautiful oasis for years to come.


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