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  1. M

    pool etching problem?

    So the recommendations seem to be drain the pool and refill to fix the CYA issue. But I think I might have created some confusion about the colors by not explaining clearly. In the above images, the areas in the black circles is the color that the pool bottom is supposed to be. My mom...
  2. M

    pool etching problem?

    The water looks clear and I did some pool tests. I think the pool is about 30000 gallons and it took about 15 pounds of soda ash to get the ph back to 7.2. It uses a DE filter and when I cleaned it, it was a bright blue color which I forgot to take pictures of. The following picture shows some...