How to Backwash Your Pool Filter

For advice or training on how to get the most out of your pool filter, or to book an equipment check, contact your local Poolwerx and get the experts poolside today.

Timestamps:

• 00:00 - Why and when to backwash your pool filter

• 00:15 - Reading your pool filter pressure gauge

• 00:34 - Turning the multiport valve to backwash

• 00:51 - How long to backwash and watch the sight glass

• 01:13 - Switching safely from backwash to rinse

• 01:34 - Rinse time and resetting your filter

• 01:41 - Filter, recirculate and waste settings explained

• 02:37 - Using waste to vacuum a dirty pool floor

• 02:59 - Salt water chlorinator tips and run times

In this DIY pool care video, our Poolwerx technician walks you through how to backwash a pool filter step by step, using simple checks and clear timings so you know you’re doing it the right way. You’ll see exactly when to backwash using your pressure gauge, how to avoid wasting good chemicals and salt, and how to keep your filter working efficiently for a safe, healthy pool.

We start with the pressure gauge, explaining how a rise in pressure tells you when to backwash your pool filter and when you can hold off. Then we show you how to safely turn the multiport valve with the pump off, move to the backwash setting, and run it for around a minute to a minute and a half, or until the sight glass runs clear.

Next, you’ll learn how to backwash and rinse your pool filter correctly. We switch the valve to rinse to reset the pipework and clean the last bit of sand or media, and explain why giving it an extra 15 seconds helps protect your water balance and keep the system running smoothly.

Our technician also has your multiport valve settings explained in plain language – including filter for everyday use, recirculate for moving floc through the water without clogging the filter, and waste for vacuuming a dirty floor or lowering the water level after heavy rain. You’ll also hear quick tips on salt water chlorinators, pump run times and how variable speed pumps can save you energy while keeping your pool sparkling.

Whether you love DIY where you can or want to trust us when you need support, we’re here to make expert pool care easy so you can spend more time enjoying poolside memories. If you’re ever unsure, book a service or video call with your local Poolwerx – Australia’s pool care experts and the healthy pool people.