Your pool’s filter is its “lungs.” It keeps the water clean, clear, and free of contaminants. But over time—especially with Florida’s climate, constant use, and debris buildup—its performance can decline.

Recognizing the signs early can help you avoid bigger, more expensive problems. Here are the most important indicators that your pool filter needs attention:

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1. The Water Turns Cloudy Frequently 🌫️

If you clean your pool and the water becomes cloudy again shortly after, it’s a classic sign the filter isn’t removing particles properly.
This can happen due to:
✔️ worn internal parts
✔️ saturated sand or cartridges
✔️ damaged valves
✔️ improper pressure

A healthy filter should keep your water crystal-clear without extra effort.

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2. Pressure Gauge Shows Very High or Very Low Readings 📈📉

The pressure gauge is your best friend.

• High pressure: the filter is clogged and not allowing proper water flow.
• Low pressure: could indicate a leak, pump issue, or internal filter problem.

If the pressure stays out of the normal range even after cleaning, it’s time for a repair or replacement.

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3. Dirt Returns to the Pool After Vacuuming 🧹➡️💦

If you vacuum the pool and dirt comes back through the return jets, the filter isn’t doing its job.
This may happen when:

• the sand is old
• the cartridges are damaged
• the internal membrane is torn
• the DE (diatomaceous earth) filter is compromised

This is one of the clearest signs your filtration system needs professional attention.

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4. The Filter Takes Much Longer to Clean the Water ⏳

If your system used to clear the water within a few hours but now needs significantly more time, the filter has likely lost efficiency.
This not only reduces water quality—it also increases your energy use and puts more strain on the pump.

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5. Visible Leaks or Puddles Around the Filter 💧⚠️

Any leak around the filter or nearby connections is an urgent warning sign.
Leaks can lead to:
✔️ loss of pressure
✔️ pipe damage
✔️ premature pump wear
✔️ complete filter failure

Never ignore a leak in this area.

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6. Strange Odors or Foamy Water 🫧

If you notice an unusual smell or foam on the water’s surface, your pool water isn’t circulating or filtering correctly.
This often happens when the filter fails to trap organic debris, oils, or chemical residue.

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7. Your Filter Is Over 5–7 Years Old 📅

While some filters last longer, Florida conditions make them work harder year-round.
If your filter is past the 5–7 year mark, it may:

• lose efficiency
• waste more energy
• require constant cleaning
• develop internal failures

Replacing it on time prevents costly damage later.

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Conclusion

If you notice one or more of these signs, it’s time to schedule a professional inspection. A well-maintained filter keeps your pool clean, safe, and ready to enjoy any day of the year.

At Pro Quality Pools, we provide filter maintenance, repairs, and replacements so your pool stays in perfect condition all year long.