Pool Skimmer Not Working? Here’s How to Fix It Quickly

Your pool skimmer is one of the first lines of defence in keeping your water clean. When it stops working properly, leaves, bugs, and debris float around — and your filtration system has to work overtime.

If you’ve noticed your pool skimmer not working, this guide will help you diagnose the problem, fix it quickly, and prevent it from happening again.

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What Does a Pool Skimmer Do?

A skimmer:

• Pulls in water from the surface

• Captures floating debris before it sinks

• Sends water to the pump and filter system

If it’s not drawing water or collecting debris, it can lead to cloudy water, poor circulation, and even algae growth.

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Common Signs Your Pool Skimmer Isn’t Working

• Floating debris stays on the surface

• Weak suction at the skimmer

• Water level not dropping during vacuuming

• Pump making a sucking or gurgling noise

• Bubbles or air entering the pump basket

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1. Check the Water Level

If the water is too low, the skimmer can’t pull in enough water.

✅ Fix:

• Top up the pool water to halfway up the skimmer box opening

• Avoid overfilling, which reduces surface tension and debris flow

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2. Empty the Skimmer Basket

A full basket blocks water flow and reduces suction.

✅ Fix:

• Turn off the pump

• Remove and empty the skimmer basket

• Rinse with a hose if clogged with fine debris

Check it at least twice a week, especially during leaf-drop seasons.

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3. Clear Blockages in the Skimmer Line

If the pump runs dry or suction is weak, the line between the skimmer and the pump may be blocked.

✅ Fix:

• Use a drain king hose attachment to flush the line from the pump side

• Alternatively, insert a pool plumbing snake or flexible rod from the skimmer

Never use metal rods — they can damage pipes. We offer flexible line clearing tools in our pool products range.

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4. Inspect the Weir Door (Flap)

The weir flap helps create surface tension by adjusting with water level. If it’s stuck, missing or jammed, your skimmer may underperform.

✅ Fix:

• Wiggle the weir door by hand — it should move freely

• Replace broken or swollen doors with a new part

• Clear leaves or twigs blocking its movement

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5. Check for Air Leaks

Air leaks can reduce suction and cause the pump to suck in bubbles instead of water.

✅ Fix:

• Check the skimmer lid O-ring and seal

• Use pool lube to improve the seal

• Inspect the pipe fittings for cracks or leaks

Air leaks often occur after DIY repairs or heavy rainfall loosening connections.

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6. Inspect the Skimmer Vacuum Plate (If Using One)

Vacuum plates allow you to connect a manual vacuum through the skimmer. If fitted poorly or cracked, it can block suction.

✅ Fix:

• Remove the vacuum plate and check suction

• Replace if warped or leaking

• Store flat and clean to prevent bending

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7. Test the Suction With Your Hand

With the pump running and the skimmer basket removed:

• Place your hand inside the skimmer throat

• Feel for steady suction

If there’s little or no pull, the issue may be further down the system (e.g. pump, impeller or filter). Consider cleaning those next.

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8. Clean the Pump Basket and Filter

Poor skimmer performance may be a symptom of clogged equipment.

✅ Fix:

• Turn off the pump and clean the pump basket

• Backwash or rinse your filter

• Restore flow and pressure

Clean equipment supports skimmer suction and overall circulation.

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9. Replace Damaged Skimmer Parts

If your skimmer is cracked, loose, or heavily worn, it may need replacement.

You can find:

• Replacement baskets

• Lids and flaps

• Skimmer vac plates

• Skimmer socks (to catch fine debris)

All available in our pool products section.

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10. Call a Technician for Structural Damage

Cracked skimmer boxes, broken pipe joints or underground leaks should be handled by a licensed pool plumber or repair technician.

Delaying repairs can damage your entire circulation system and lead to costly water loss.

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Conclusion

If your pool skimmer isn’t working, don’t ignore it. It affects water quality, increases chemical demand, and strains your pump and filter.

Start with simple checks like water level, basket blockages and suction tests — and work your way through this list. And if you need parts or cleaning tools, browse our full range of pool products to get your skimmer working like new again.

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Frequently Asked Questions