View attachment 59742 View attachment 59743 View attachment 59747 Hi All...new pool owner as of last summer. I am SOOO looking for to using the TFP method....been reading so much good info. So I had my pool professionally closed last Fall, these pictures are from last summer. I ordered my Taylor test kit...to test the water and begin opening the pool later this week. I will post questions as they come up. My big concern is the staining you see in the pictures. I am unsure if it is organic or metal, there is also some minor discoloring on the floor of the pool. I plan to SLAM the pool to kill all of the algae in it soon. Will the SLAM remove a lot of these stains? My question is what is the best way to attack these stains and clean up the plaster? Drain the pool and do an acid rinse? No drain zero alkalinity acid treatment? SLAM? Thanks so much...this FORUM has already been a life changer...you guys rock!!!