06-03-2016, 02:40 PM
Ahhh the mystery stain. The only way to tell for sure is to taste it. 
Just kidding of course.
Pro-Solve and Power Gel won't touch a colored reddish/brown stain like that. Those products are ideal for oils, petroleum based stuff.
It's hard to tell what it could have been. It sounds like you tried the right combination of products to tackle it. You might also try some CTI Red Relief or Stain Magic.
Sometimes a stain is what it is - "a stain". There's no telling what the source was, how long it's been there, and what possible attempts may have previously been done to treat it. Sadly sometimes we can't always be the hero. The rest of the carpet looks pretty good though.
Just kidding of course.
Pro-Solve and Power Gel won't touch a colored reddish/brown stain like that. Those products are ideal for oils, petroleum based stuff.
It's hard to tell what it could have been. It sounds like you tried the right combination of products to tackle it. You might also try some CTI Red Relief or Stain Magic.
Sometimes a stain is what it is - "a stain". There's no telling what the source was, how long it's been there, and what possible attempts may have previously been done to treat it. Sadly sometimes we can't always be the hero. The rest of the carpet looks pretty good though.