I have read some other posts pertaining to this, but still a bit confused on what to do. I have a bunch of yellow staining on my pool liner. It looks a lot like it would if you had mustard algae but when you brush, it doesn't come off. I have been SLAM'ing for the past 10 days or so, and the staining seems to be much worse. I just noticed at the bottom near the drain, it is almost a swirl-like pattern everywhere except about 6" around the drain. I am attaching some photos, but the camera really doesn't capture it very well.
The only thing I have changed, is I put in one of those "skim-a-round" skimmer baskets to see if I could get a bit more flow to my only skimmer, and to get it to work, I had to turn down pump flow of drain and move more pump to skimmer. Also, I ordered my HDX liquid chlorine from a different Home Depot than I normally do, and when it was delivered, the jugs were very dusty, so could expired Chlorine cause this? It seemed a bit more yellow in color when I poured it in.
If I need to test for metals, can I do this myself, or does it have to be at the pool store, which is closed as non-essential due to Covid. Thanks.
The only thing I have changed, is I put in one of those "skim-a-round" skimmer baskets to see if I could get a bit more flow to my only skimmer, and to get it to work, I had to turn down pump flow of drain and move more pump to skimmer. Also, I ordered my HDX liquid chlorine from a different Home Depot than I normally do, and when it was delivered, the jugs were very dusty, so could expired Chlorine cause this? It seemed a bit more yellow in color when I poured it in.
If I need to test for metals, can I do this myself, or does it have to be at the pool store, which is closed as non-essential due to Covid. Thanks.