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Don't swim in filth—here's how to clean a pool

It's not just a chlorine dump

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Your swimming pool may be the most disgusting thing you own. If you haven’t learned how to clean a pool properly, then all that moisture can spawn algae, fungus, bacteria, and mosquitoes.

Many people think that pool maintenance just means adding a little chlorine every once in a while. That's a bit like thinking you don't need to clean your shower because it gets soapy daily.

Proper pool maintenance paired with tools like pool vacuums and brushes ensures your pool will provide a cleaner, more pleasant swim. We did our research on all the essentials you need to know. Here’s how to clean a pool the right way.

How often should I skim my pool?

A net used for swimming pool maintenance retrieves a Hibiscus Flower
Credit: Getty Images

A net for skimming is one of the first pieces of pool equipment any pool owner should buy.

Daily skimming is a fundamental part of good pool maintenance. Remove debris by skimming the surface with a pool net before they can settle and accumulate on the bottom. Also, remember to check your skimmer basket.

If you constantly remove bugs and leaves, you may need to trim some nearby trees, as they are often the source. Or consider investing in a pool cover, which will also help regulate temperature.

Product image of U.S. Pool Supply Pool Net
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How to prevent algae growth?

You should scrub the walls and ladders in your pool for algae around twice a week. Stainless steel pool brushes are probably your best bet if your pool is made of concrete or gunite. A nylon brush is best for fiberglass and vinyl to avoid scratches.

Product image of Lalapool Swimming Pool Wall & Tile Brush
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Scour away algae before it builds up with this widely compatible pool brush.

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Product image of Poolwhale Professional 12 Feet Blue Anodized Aluminum Telescopic Swimming Pool Pole
Poolwhale Professional 12 Feet Blue Anodized Aluminum Telescopic Swimming Pool Pole
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Pair your brush with a long handle for better reach.

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Do I need to vacuum my pool?

Someone preparing to use a robotic pool vacuum for the bottom of a pool.
Credit: Reviewed / Getty Images / vitapix

Pool vacuum robots can suction debris off pool floors.

Vacuuming your pool keeps the stuff you missed while skimming and brushing from destroying your pumps and filters. Pool vacuums come in manual and robotic forms.

Robotic cleaners have many tiers. Some only clean the pool floor, while other pool vacuums will climb the walls and skim the water line.

Models like the Dolphin Nautilus make digital maps, can suction up leaves and dirt, and clean a 50-foot pool in two hours. The downside is that they cost about $800.

Manual pool vacuums cost anywhere from $100 to $300 but can be cumbersome and time-consuming. We’re a company that likes robots doing chores, yet we all know someone who would prefer manual pool equipment.

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Product image of Pool Blaster Max Cordless Pool Vacuum
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This manual pool vacuum might take more work than a robot, but it offers standout value.

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How to clean a pool filter?

A photo of a pool filter being cleaned for pool maintenance.

Make sure that your pool maintenance routine extends to your pool filter.

Regardless of whether you have a diatomaceous earth (DE), sand, or cartridge filter, you should regularly check it and remove large debris to keep water circulating. If you own a DE or sand filter, you should also consider backwashing it or reversing the water flow through the filtration system to clear it out.

The general rule is to backwash once the pressure gauge is 8 -10 psi above the normal startup pressure. The backwash procedure depends on your valve setup.

How often should I test my pool’s chlorine levels?

A hand holds up a water quality test, checking its levels as part of pool maintenance.
Credit: Getty Images / welcomia

Standard water quality tests are visually intuitive.

When you smell the scent of chlorine, it means that the water is dirty. Checking chemical levels with a testing kit is an important part of pool maintenance, and generally, you should do so as often as you use the pool.

For example, if your family uses the pool daily, you should test your water chemistry daily. It only takes one accident to make the pool filthy.

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Use these strips to test water chemistry.

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