I’ve got some stubborn staining in a pool that I inherited when I bought my home two years ago. The house was a foreclosure and the pool wasn’t being properly maintained for sometime although the bank did open it and install new pumps and cover. Last summer (second season with the pool) I attempted a AA treatment with great results. Many of the stains lifted but they ultimately returned as I couldn’t keep up with sequestering. At the end of the season I hired a pool company to drain and acid wash the pool. Lots of the stains were removed but there are many stubborn stains and streaks in the deep end.
As I opened the pool two weeks ago I decided to do another AA treatment using 3-4 lbs of ascorbic acid. I then drained the pool. As I was draining it I worked on some stains directly with AA and also MA with mixed results. Some lifted but most did not. I also dumped in a bottle of Jack’s blue for food measure. No effect.
I finished the drain and refilled the pool only to decide to try again thinking maybe I didn’t put enough AA since some stains did lift with AA applied directly;. this time I added about 6-7 lbs and I’m about 12 hours in. The stains don’t seem to be budging. I have noticed some stains turning black which I believe indicates copper but the majority just continue to be reddish/brown.
I do believe the plaster finish is at or near the end of its life as I can see concrete in some spots. Perhaps it’s a lost cause at this point?
I’m mostly stumped and wondering if I should just give up or try a no drain acid wash, and then drain and refill.
Any and all advice would be very welcomed
As I opened the pool two weeks ago I decided to do another AA treatment using 3-4 lbs of ascorbic acid. I then drained the pool. As I was draining it I worked on some stains directly with AA and also MA with mixed results. Some lifted but most did not. I also dumped in a bottle of Jack’s blue for food measure. No effect.
I finished the drain and refilled the pool only to decide to try again thinking maybe I didn’t put enough AA since some stains did lift with AA applied directly;. this time I added about 6-7 lbs and I’m about 12 hours in. The stains don’t seem to be budging. I have noticed some stains turning black which I believe indicates copper but the majority just continue to be reddish/brown.
I do believe the plaster finish is at or near the end of its life as I can see concrete in some spots. Perhaps it’s a lost cause at this point?
I’m mostly stumped and wondering if I should just give up or try a no drain acid wash, and then drain and refill.
Any and all advice would be very welcomed
