I had a stain on my carpet, the professional came round tried to remove it and later it turned pink, he told me to add bicarbonate of soda watered down 1/5, the pink faded but not completely he said to put more bicarb on which i did and it worked on the stain (not completely but enough to live with)however, the surrounding edge where the bicarb had flooded onto it turned a darker shade of my carpet and now i have a massive stain of bicarb on the carpet.It looks worse than the original stain. How do I get rid of the bicarb stain now?
You might get lucky but sometimes a series of chemical processes ends up fixing the stain permanently. A research chemist and a lot of time and money might fix it but sometimes you have to consider alternatives.
Not too long ago, a plumber left a stain on a carpet. I went through a variety of products and services to try an remove it. In the end it was worse than it was before I started.
I paid a carpet fitter to replace the carpet.
In my experience, the dark ring around the spot is not a stain but dirt under the carpet that has gotten wet and wicked a bit into the carpet.
Use a carpet cleaner machine on the area; you might need multiple passes, but if the carpet cleaner machine is worth anything, it will get it done in fairly quick order.