WebMay 23, 2012 · The Pool company is leaning towards iron (especially after the ascorbic "vitamin C" test I did and it turning the spot black and then disappearing) and they have recommended I do the following: Check the pH and make sure it is b/w 7.0-7.4 and that the chlorine is 1.0 or under. WebMay 5, 2024 · Pool Size 35000 Surface Plaster Chlorine Salt Water Generator SWG Type Pentair Intellichlor IC-60 Apr 24, 2024 #3 Post some pics and see if your spots look like the pics here... Black Algae This guide provides a step by step procedure for eliminating black algae in your concrete or gunite pool. Read full post here. www.troublefreepool.com …
How to Get Rid of Blackspot Algae in Your Swimming Pool: 13 …
WebNov 5, 2024 · Eventually as more rust bleeds through, the black spot gets larger and then you will begin to see an orange rust color appearing in the center of the spot. How Do You Fix It? There are two options for this problem. One is to chip out the entire pool, cut out the exposed rebar, and then resurface. most recent wars in the world
How to Remove Stains From a Plaster Swimming Pool - LiveAbout
WebAccording to Pool Center, here’s how you can tell: 1The spots are black or blue-green with raised heads, not free-floating. 2The algae harbors in rough areas of the pool plaster. 3It doesn’t brush off the wall easily. 4The … http://www.poolhelpforum.com/viewtopic.php?t=795&start=30 WebDec 3, 2024 · I noticed some black agae spots in my gunite pool. They are small - about 15 in the entire pool. I have spot treated them with Trichlor chlorine pucks, and scrubbed them. No success. Volume 20,000 gallons SWG salt 3200 pH 7.7 TA 100 CH 280 CYA this is low. I haven’t raised it yet, as the Chlorine is holding well with my SWG at 5 to 6. most recent window keeps closing