First thing you need to do is check the pH of the water. If the pH got too low, below 7.0, this could be caused by copper from the heat exchanger in the heater. If the pH is ok, this could be nothing more than an algae bloom because the pool ran out of chlorine. Not quite enough information to answer your question.
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First thing you need to do is check the pH of the water. If the pH got too low, below 7.0, this could be caused by copper from the heat exchanger in the heater. If the pH is ok, this could be nothing more than an algae bloom because the pool ran out of chlorine. Not quite enough information to answer your question.