These strips measure the level of phosphates present in the pool water. Phosphates are a breeding ground for algae and these phosphates should ideally not be present in the pool water. If you have a high level of phosphates in the pool, the chlorine will no longer work and you will get green water.
| Brand | Insta-Test |
| Volume | 0.00019 m³ |
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BrandInsta-Test
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Volume0.00019 m³
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