Phosphate Remover for
Pools and Water Systems

Fast removal. No clouding. Clear Water for 30 - 60 Days.

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Trusted by Pool Pros for Phosphate Removal

About PhosLocker®

PhosLocker is a subtractive phosphate binding media that binds up and removes the phosphates from water but with little to no clouding that is common for liquid phosphate removers. ​Our product is quick and easy to use! Treatment typically takes less than 15 seconds, and does not load up the pool filters causing them to need to be cleaned.

PhosLocker pouch works all month long helping keep pool water clean and with low phosphates. AVOID the nasty green mess of algae blooms with the PhosLocker phosphate binding technology!

PhosLocker Phosphate Removers

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PhosLocker Max

PhosLocker Max

Regular price  $79.99 Sale price  $38.95
Sale price  $38.95 Regular price  $79.99
PhosLocker (Max) Sample

PhosLocker (Max) Sample

$0.00
$0.00
PhosLocker STANDARD Phosphate Remover

PhosLocker STANDARD Phosphate Remover

Regular price  $59.99 Sale price  $29.95
Sale price  $29.95 Regular price  $59.99

Is Your Pool’s Phosphate Level Too High?

If you’re constantly battling green water, recurring algae, or dull, cloudy water, your pool may have high phosphate levels. Phosphates are algae’s main food source — and as long as they’re present, you’ll keep fighting the same problem over and over.

Signs of High Phosphates in Your Pool

You don’t need to be a pool expert to notice the symptoms. If you’re seeing any of these issues, high phosphates are likely the cause:

  • Recurring Algae Growth: Green, yellow, or mustard algae keeps returning soon after treatment.
  • Increased Chlorine Demand: You’re using more chlorine than usual just to keep the water clear.
  • Cloudy or Dull Water: The water never looks sparkling clean, even with regular maintenance.
  • Slippery Pool Surfaces: A slimy film coats walls or floors, making them slick and unsafe.

PhosLocker® Outperforms
Liquid Phosphate Removers

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Zero Cloudiness: Swim Immediately After Use

Removes phosphates without leaving the water cloudy — no waiting, just dive in.

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Quick & Easy Use in Under 15 Seconds

Simply drop in the pouch — fast, hassle-free treatment that saves you time.

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Month-Long Phosphate Control

Each pouch keeps working for a full 30-60 days, protecting your pool from algae blooms.

Simple Phosphate Removal Without Cloudiness

Just drop it in!

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Frequently Asked
Questions

Why is Phosphate Remover important for Pools?

Phosphates are naturally occurring in pool water, introduced through rain, fertilizers, and swimmer activity. These phosphates act as nutrients that algae feed on, when levels get high, algae blooms thrive, turning your pool water green and cloudy. 

A phosphate remover eliminates these nutrients, helping to prevent algae growth and keeping your pool clean and clear. Unlike liquid chemicals, PhosLocker works differently: each pouch is placed directly in the water flow, where it absorbs and binds phosphates for 30–60 days. By removing the algae’s food source, PhosLocker provides continuous, long-lasting protection that improves water clarity without clouding or added stress to your pool system.

Does phosphate remover make pool water cloudy?

Most traditional phosphate removers in pool water can cause temporary clouding, but PhosLocker is different. Its unique subtractive technology ensures phosphates are removed without clouding, so your pool stays clear while the product works.

Does phosphate remover kill algae?

A phosphate remover for pools does not directly kill algae, but it prevents algae from growing in the first place. Algae needs phosphates to survive, and PhosLocker  phosphate remover in pool water binds and removes those phosphates continuously for 30-60 days. Without phosphates, algae has no food source, meaning your pool, spa, or fountain water stays clearer for longer. This makes PhosLocker the best phosphate remover for pools because it helps stop algae blooms before they even start, reducing the need for extra sanitizers or costly algaecides.

PhosLocker: prevention, not reaction.

What to do with a PhosLocker pouch after use? 

After about 30-60 days, your PhosLocker pouch will be full of bound phosphates. Instead of tossing it, you can reuse the phosphate-rich contents to enrich soil in your garden, lawn, or flower beds. Thanks to our low-waste technology, PhosLocker goes beyond being a phosphate remover for swimming pools, it’s also an eco-friendly solution. One product, two benefits: cleaner water and healthier plants. Yes, PhosLocker is safe, sustainable, and biodegradable. Just remove the pouch from your skimmer or pump basket, cut it open, and pour the contents back into your garden, lawn, or flower beds.

Ready for Crystal Clear Water?

Stop Algae Before It Starts — Get Crystal Clear Water

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