Sand in a swimming pool isn’t just a minor nuisance — it’s often a sign your filtration system has a problem. And until you fix it, you’ll be cleaning the same mess over and over.

In this guide, we’ll explain why sand ends up in your pool, show you exactly how to remove it, and share how to prevent it from coming back.

Why Sand Gets Into a Pool

In most cases, sand shows up because the filter isn’t holding it where it belongs. See, inside a sand filter are small plastic arms called laterals, and they’re designed to trap the sand while water flows through. If one of these arms cracks, the sand slips through, rides the return water line back into the pool, and drops to the floor.

But that’s not the only possibility. Other common failures include a damaged standpipe, a faulty multiport valve, or a worn spider gasket inside that valve, any of which can let sand bypass the normal route. 

Of course, environmental factors like windblown dust or nearby construction can introduce debris. In the vast majority of residential pools with sand filters, though, a filter fault is the real cause.

The clearest sign is repetition: if you clean the pool and the sand reappears in the same spots within days, your filter needs attention before you worry about removal.

Method 1: How to Remove Sand from a Pool with a Vacuum to Waste

If your pool has a multiport valve with a “waste” setting, this is the fastest and cleanest way to remove sand. It bypasses the filter entirely, so you’re not sending sand right back into the water.

Step 1: Turn off the pump and wait for the sand to settle completely. 

This prevents it from swirling around and makes it easier to collect in one pass.

Step 2: Set the multiport valve to “waste.” 

This directs water and debris straight out of the pool rather than through the filter.

Step 3: Fill the pool to the top

Vacuuming to waste removes water quickly, and starting full prevents the pump from running dry.

Step 4: Vacuum slowly in straight lines, starting farthest from the waste outlet. 

Slow passes keep sand from getting stirred into suspension.

Step 5: Stop immediately if the water level drops near the skimmer to avoid pump cavitation.

Then, refill before continuing.

Done correctly, this method can remove nearly all sand in one session and keep it from re-entering the pool through the filter.

Method 2: Manual Scooping and Brushing

If you don’t have a waste setting, manual cleanup works well for larger patches of sand — though it’s more time-consuming.

Step 1: If the piles are large enough, use a pool net or leaf rake to scoop them up.

 Empty the net often to avoid spilling sand back into the pool.

Step 2: For smaller amounts, brush the sand toward the main drain or into one concentrated area. 

Brushing is often more effective than netting for fine particles.

Step 3: Use a siphon hose or small submersible pump to remove the collected sand. 

Make sure your siphon is primed before placing it in the pool.

Step 4: Repeat the process 

Don’t stop until the pool floor is completely clear.

While slower than vacuuming, this method works with minimal equipment and gives you good control over where the sand collects.

Method 3: Using a Robotic Pool Cleaner

Some robotic cleaners are designed to handle fine sand. If yours is, this can be a low-effort way to keep your floor clean.

Step 1: Check the manufacturer’s manual to confirm your model can safely pick up sand.

Using the wrong cleaner could damage it.

Step 2: Clean the robot’s filter basket before starting. 

An empty basket ensures maximum suction power.

Step 3: Place the cleaner in the pool and run a full cleaning cycle. 

Let it work without interruptions so it can cover all surfaces.

Step 4: Empty and rinse the robot’s filter basket as soon as the cycle finishes.

This can help prevent clogs.

Of course, a robot won’t fix the cause of sand in the water. But it’s a convenient option for ongoing maintenance once repairs are made.

When to Call a Professional

If you’ve vacuumed, brushed, and checked the filter but the sand keeps coming back, there’s probably more going on than meets the eye. Persistent sand can be tricky to diagnose without the right tools and experience, and guessing your way through repairs can cost more in the long run.

At Clark Pools and Spas, we offer professional pool cleaning and maintenance services to help you get rid of sand in your pool and keep it from coming back. With the right support, you can get back to enjoying your pool instead of battling the same mess week after week. Contact us to book an appointment today.