Moved from here.
Sounds like my battle. I’ve had pools for forty years without any serious problems. Currently I’ve had a smaller pool(16,000 gallons) surrounded by trees and greenery. Occasionally large grand dogs come and swim. Ok, I handled that until I couldn’t. Worked with my local pool supplier. He explained that over time our muni water has increased phosphate and nitrates due to poultry farm pollution way upstream in a neighboring state. Water evaporates from the pool leaving pollutants behind to build up. We treated phosphates but the only way to treat nitrates was to drain and power wash the pool. I did that three or four years ago and it solved the problem. But it’s back again this year. I will need to drain and refill again. Or, shock my pool almost every day. Appears it will be a periodic requirement living in this area. Our muni water meets EPA standards and the city can’t remove nitrates either. Forty years maintaining pools in this area and it has come to this. Many pool owners are experiencing the same situation. I suppose every pool is different in bathing loads greenery and fertilizer contamination, which would explain why some are not having the problem. Yet.
Sounds like my battle. I’ve had pools for forty years without any serious problems. Currently I’ve had a smaller pool(16,000 gallons) surrounded by trees and greenery. Occasionally large grand dogs come and swim. Ok, I handled that until I couldn’t. Worked with my local pool supplier. He explained that over time our muni water has increased phosphate and nitrates due to poultry farm pollution way upstream in a neighboring state. Water evaporates from the pool leaving pollutants behind to build up. We treated phosphates but the only way to treat nitrates was to drain and power wash the pool. I did that three or four years ago and it solved the problem. But it’s back again this year. I will need to drain and refill again. Or, shock my pool almost every day. Appears it will be a periodic requirement living in this area. Our muni water meets EPA standards and the city can’t remove nitrates either. Forty years maintaining pools in this area and it has come to this. Many pool owners are experiencing the same situation. I suppose every pool is different in bathing loads greenery and fertilizer contamination, which would explain why some are not having the problem. Yet.
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