I was wondering if the addition of salt to a pool changes the degree of pink color you get after adding the R-011L reagent in testing for calcium hardness?
The reason I ask is that I don't check it often (just because it rarely varies too much) and we have added a SWG since the last time I tested and now the water is just barely pink after adding the reagent. I tested 3 times on my own because I could just barely see color at all let alone a change and then I had the pool store test just to be sure I wasn't getting a faulty reading or having problems with reagents.
Prior to adding SWG, I remember the water initially being bright pink. Since that's the only thing that has changes I was wondering if others had experienced this as well.