Hello, it has been a while since I have posted. I have a SWG and I am wondering if it causing me a problem, I am getting yellowish tan spots on the floor of the pool. I have tried to brush them off, but they do not come off easily. Would a pumice stone work?
I went to the local pool store and they told me it is a yellow algae problem and I need to shock the pool. Is this some type of organic stain? My chemistry is pretty much in balance.