I had a carpet chewer, lol. I tried many things, but the only thing, besides watching her all the time, that helped is her growing up
. She is almost two and I am happy to say, the carpet chewing is a non issue now
The carpet she preferred is some pretty old ugly orange/brown carpet that I planned to replace when all the puppers were grown up and out of training stage so it wasn't a huge issue, except for the issue of her swallowing too much. (I didn't leave her alone enough to let her get too much) She did have some pretty colorful poops! I did try using bitter spray, but only worked until it wore off.
Here's a picture of her when she was a puppy, with the carpet fiber evidence hanging from her mouth LOL
