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Home > Chemicals > Natural Chemistry > Phosphate Removers
Natural Chemistry PHOSfloc 4lb
Natural Chemistry PHOSfloc 4lb
Part #: 07200

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Product Specs

Bulk Phosphate Remover

PhosFloc quickly drops high levels of phosphates to more manageable levels for use of PHOSfree and Pool Perfect + PHOSfree. It dissolves instantly in water for easy application.

  • Reduces phosphate levels over 2500 ppb to more manageable levels
  • Non-toxic and will not harm the environment
  • Must be vacuumed to waste


4lbs per 10,000 gallons (38,000L)

How to Apply:

1. With circulation system on, adjust pool water pH to 7.2 before adding PHOSfloc

2. Add 4lbs (or required amount) of PHOSfloc to a large bucket of water and mix

- If your pool has a recirculation (filter bypass) setting, add PHOSfloc/water mixture slowly to skimmer and allow water to circulate for 1-2 hours

- DO NOT add directly to filter

3. Turn system off and allow PHOSfloc to settle (this may take up to 12 hours)

4. Vacuum sediment to waste * DO NOT VACUUM TO FILTER*


1a. If no circulation (filter bypass) setting is available, add 4lbs of PHOSfloc to a large bucket of water and mix

2a. With filter system off, broadcast this mixture over the water while walking around the pool

3a. Allow PHOSfloc to settle (this may take up to 12 hours)

4a. Vacuum sediment to waste *DO NOT VACUUM TO FILTER*

5. Important: it is necessary to further reduce phosphate level to near zero by using PHOSfree or Pool Magic+PHOSfree

6. Maintain phosphate levels all season long with Pool Perfect+PHOSfree, for easy weekly maintenance


If PHOSfloc does not floc within 12 hours, adjust pH to 6.8

Features & Benefits:

  • PHOSfloc is a high grade, iron-free floc that dissolves instantly in water
  • Concentrated formula
  • Will not harm pool surfaces