How to paint carpet ?

https://www.hometalk.com/diy/floors-ceilings/how-to-paint-outdoor-carpet-44038901?expand_all_questions=1#!

https://www.hometalk.com/diy/paint/rooms/how-to-painta-carpet-with-the-antico-stencil-5743433

Here's how some experienced hometalkers did it

https://www.hometalk.com/search/posts?filter=hoe%20to%20paint%20carpet

So many really cute choices when it comes to carpet painting. You can stencil a pattern on, you can use tape to create a pattern or you can just paint the entire thing in a solid color. Here's a DIY to help you out. Keep in mind that certain carpet materials won't take certain paints or wear well. https://www.wikihow.com/Paint-Your-Carpet

What are you trying to accomplish?

Is it dirty, stained, flattened/crushed in wear patterns?

We can advise you how to clean it based on the stain.

If it’s crushed in traffic paths, then the only solution is to rob fresh carpet out of closets and patch it. That’s not an easy job and it’ll have to be re-stretched.

Wall to wall carpet is 100% synthetic pile and can’t be painted or it will become a hard crunchy mess.

If you had wool carpet, you’d have paid a fortune for it and you could have it dyed.

Carpet & pad typically last 10 years in high traffic, high use areas.