Another Update:
This is the beginning of the 4th day of the second round of chelated copper treatment. I always do my last full pool brushing when I do the last chlorine dose which is when the sun starts going down. Recently, I have only been seeing sparse thin white patches in the shallow end and a white sediment line along the crease on both sides of the slant that goes down to the deep end and and along the crease in the deep end. Unfortunately, yesterday's events made it to where I wasn't able to check and dose the FC until 6:30 PM. At that time the stuff in the pool looked like what I just described and the FC was 15 (ugh!). So....I added enough cal-hypo to get it up to FC = 40 and brushed. When I checked the level around 10 PM, it was 39.5......this morning at 8:30 AM the FC was 34.5 and there was more of the white stuff than there has been over the last 4 mornings. Although....It somewhat seems that most of it makes a pattern consistent with return flow (which is a first).
A new component to my saga:
I finally got to talk to my neighbor, who also has an in-ground vinyl liner pool, about my pool issue. Surprise...surprise.....he had been dealing with the same EXACT scenario. He said that he spoke with the water treatment specialist where he works. They told him that mustard algae has been making a come back and that was what he seemed to have. They also said my neighbor should raise the pH in his pool to between 8.5 and 9 while keeping the chlorine on the upper end of normal. So my neighbor added the soda ash and kept the FC as advised. After 1 week, the sediment quit showing up, but left white stains in his blue liner everywhere it persisted. He says he knows he is only keeping it a bay, but at least they have been able to swim. For him, completely eradicating it was not paramount because he is changing the liner out this year anyway due to its age.
This is the beginning of the 4th day of the second round of chelated copper treatment. I always do my last full pool brushing when I do the last chlorine dose which is when the sun starts going down. Recently, I have only been seeing sparse thin white patches in the shallow end and a white sediment line along the crease on both sides of the slant that goes down to the deep end and and along the crease in the deep end. Unfortunately, yesterday's events made it to where I wasn't able to check and dose the FC until 6:30 PM. At that time the stuff in the pool looked like what I just described and the FC was 15 (ugh!). So....I added enough cal-hypo to get it up to FC = 40 and brushed. When I checked the level around 10 PM, it was 39.5......this morning at 8:30 AM the FC was 34.5 and there was more of the white stuff than there has been over the last 4 mornings. Although....It somewhat seems that most of it makes a pattern consistent with return flow (which is a first).
A new component to my saga:
I finally got to talk to my neighbor, who also has an in-ground vinyl liner pool, about my pool issue. Surprise...surprise.....he had been dealing with the same EXACT scenario. He said that he spoke with the water treatment specialist where he works. They told him that mustard algae has been making a come back and that was what he seemed to have. They also said my neighbor should raise the pH in his pool to between 8.5 and 9 while keeping the chlorine on the upper end of normal. So my neighbor added the soda ash and kept the FC as advised. After 1 week, the sediment quit showing up, but left white stains in his blue liner everywhere it persisted. He says he knows he is only keeping it a bay, but at least they have been able to swim. For him, completely eradicating it was not paramount because he is changing the liner out this year anyway due to its age.
