as long as you are using a truckmount the whole thing about delamination is horse$shit, what I am about to tell you will never be taught anywhere and most people around here have never truely pushed the limits of some things, keep in mind I have even manged to get out cherry wood furniture stains, a so called impossibility, but when its a matter of getting the stain out or replacing the carpet that is my green light to push the limit, which I don't mind doing. some of my methods can go against conventional wisdom,
1) I have never delaminted a carpet by putting on TOO much POG, and believe me I have dumpped all sorts of solvents onto carpets before, when I say dumpped I mean used more than a gallon in a apply rinse with truckmount fashion on a paint spill.
2) red paint will be tuff, because its hard to get every last tinge out, if it was white paint on a tan carpet that is much more doable.
3) I have a sneaking suspecion that solvents have been neutered in recent years by the chemical makers, for example Cobbs POG, I have been using that product for 15 years, the last 5 years it seems like its OG instead of POG. it doesn't seem to have he oomph it once did.
4) I have been successful on many paint spills, I found that I thought I didnt' get it out only to find the customer very happy with it when it dried. I also do carpet repair so they never needed me back for that.
most of my paint spill work has been after its already dried, the first thing I do is get the truckmount hot and hit the spot with hot water as hot as I can get it, really put some heat into the fibers, next I pour, note I said pour not spray, spritz or dab, copious amounts of POG, or paint thinner on the spot, for a 1 foot diameter spot I would likely dump at least 8 oz the first go around, make sure this spreads all over the spot, I often times use my shoe to agitate a bit, be careful you don't want to distort the fibers more than you have to, keep in mind we are going for broke here, I let this sit for a while 7-8 mins, then again hit the area with hot steam from the truckmount, you will see a significant amount of paint pull out, basically you are going to keep repeating this, until the paint is gone or you can see you are about to F up the carpet, at that point you have done all you can and hopefully the rest will not show after it dries, which has often been what I have seen. a while back the painters I use on my water damage work spilled at least a pint of white paint on brand new carpet on one of their own jobs, not mine, I came out and worked on about a 1 foot diameter spot, a half gallon of POG and 1 gal of their paint thinner later, what was left was a tinge of white, anyways they later told me the people were very happy after it all dried.
the reason copious amounts POG or thinner will not screw up the carpet is because remember we are also rinsing it with water and the truckmount, solvents float to the top and dry first.
