When I was brushing my pool, I noticed for a while that there are dust coming off the side during brushing. At first I thought it was dust or algae. However when I drain the SPA to half, and touch the wall, there are actually paint in my finger, so I found out it is actually the paint coming off.
What should I do? I don't really care about the color of the pool, should I just keep brushing and keep the filter running until all the paint came off? Or I should drain and refill since the pool water is contaminated by paints?