After reading through the "Yellow/Brown dusty deposits that reappear repeatedly" sticky, I thought I'd discuss my experience and see if I still have a problem.

Over the last 3-4 years I've battled this algae. I always blamed it on myself (and rightfully so), because I let the FC get too low in warm weather. I would then get an outbreak, have to clean it up and be more religious in my maintenance.

The thing is once a spot in the pool has had an outbreak, that spot seems more and more susceptible to another outbreak. In fact, if the FC even gets low in warm weather, I know just where to look to see if anything is brewing. This has lead me to wonder whether I've really killed it before, and if it somehow still has hooks into those locations in the plaster.

With routine testing and adjustments, the water looks and feels great. But it is always in the back of my mind. Any thoughts by those who spent so much time thinking about and battling this nasty stuff?

Thanks!