Yeah im thinking this is perfect job for my first bonnet clean.
Its not to bad at all, just walkway and general grubbyness and bits of candle wax here and there.
I have no experience of a shrinking carpet and dont intend having one now so i am aprehensive.
How much moisture do these take? im sure ive read someone had one go just off pre-spray, surely you would have to apply alot of prespay for them to shrink or does the very sight of a sprayer have them popping off there grippers

How quickly do they go?
How does this sound?
Secure around edge with something- nails through a card, carpet glue if needed
thorough pre-vac
pre-spray, aggitate and bonnet small areas at a time and get dryer on.
would not cleaning right up to the walls and leaving a few inches help?
Sorry lots of questions and thanks for the replys