Algae growth is a common problem & some experts have suggested an effective solution is to remove phosphates from the water. The belief is that this action takes away a food source, reducing algae problems or even killing it (by starvation). It is important to note that phosphate-removing products are NOT EPA approved or registered as algae killers (algaecides) or algae inhibitors (algaestats).
Recent studies performed on algae growth related to phosphates have actually shown that an algae-free pool can be easily maintained even in the presence of 20,000 ppb of phosphates. These pools simply maintained 1-3 ppm of FAC and were treated with routine additions of a preventative algaecide.
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