BioGuard Zero Phos is a powerful and effective high level phosphate remover. Uisng this product will drop your phosphate levels to near zero in just 24 hours. Ideally your phospahte level should be zero, but whether your level is at 500 ppb to over 2,000 ppb, this product will help reduce it. Phosphates can get into your pool from source water, consistent bad weather, and ground runoff. No matter the source, BioGuard Zero Phos is a necessary product to get your phosphate level back under control.
For pools less than 10,000 gallons, do not exceed 16 fl oz.
|Phosphate Reading:||Amount needed per 20,000 gallons|
|0-125 ppb||Acceptable Range|
|126-500 ppb||Add BioGuard Pool Complete Weekly|
|501-1,000 ppb||4 fl oz|
|1,001-2,000 ppb||8 fl oz|
|2,000+ ppb||32 fl oz|
Make sure all pool equipment is working properly, including pump, filter, skimmer, and heater.
- Backwash and rinse filter according to manufacturer's instructions.
- Apply BioGuard Zero Phos directly to the skimmer or around the edges of the pool according to the chart. For pools less than 10,000 gallons, do not exceed 16 fl oz.
- Allow pump and filter to run continuously for 24-48* hours. Pool water may cloud upon addition, but will clear within 48 hours.
- After 48 hours, backwash and rinse the filter according to the manufacturer's instructions.
*If the filter pressure increases 8-10 psi above normal operating pressure, backwash and rinse filter accordingly.
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Does not do what it promises on the label
The product does remove phosphates but the very small print on the back says you may require more than one treatment. It depends upon how high your phosphate level is. According to the BioGuard representative I spoke to, it lowers the phosphate level approximately 5,000 ppb per treatment. The BioGuard testing at my pool store only reads phosphates up to 4,000 ppb. According ti the BioGuard representative, a “dilution test” is necessary to get an acccurate phosphate reading above 4,000. With every treatment with Zero Phos you have to clean your filters. I treated with Zero Phos once and my phosphate level was still reading above 4,000. So no, it works, but it doesn’t necessarily bring your phosphate level down to zero with one treatment in 24 hours. It depends on what your phosphate level is.
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