Hi, I have some green moss growing on some rock work around my pool. There are also some other fungii growing on the backside of the rocks and some of the higher areas. These rocks do not get rinsed with pool water and we have had unusual, but not extremely high levels of rain so far this CY.
I don't THINK this is cause for alarm, and frankly, I sort of like the natural look it gives. In the situation where there is lots of rain some of the rain water and perhaps sprinkler water could rinse over these areas.
I could take it out with boiling water I would assume if this was thought to be a major issue.
Pool otherwise is doing just fine.
What do you all do in this situation?