It's still there, a sample:
A NOTE TO CUSTOMERS
1) Your carpet is constructed with water salable glues.
2) Water salable glues are turned to mush with Heat, Water and continued moisture.
3) Steam is "Manufacture Recommended".
4) Many of these carpet manufactures make the carpet and own the largest cleaning franchises.
5) They make em, they destroy them with hot water and you buy more.
Host carpet cleaning used to be endorsed by virtually EVERY carpet manufacture in the world until a certain large cooperation decided to start up a large house hold name franchise cleaning service.
Conclusion:
Hot Steam Cleaning does have it's place commercially.
* The same technology could be used for degreasing a diesel engine
But do you really believe above boiling temperature hot water is not going to melt your carpet and compromise its structural integrity?
Dry Cleaning is not a perfect system (carpet cleaning is after all a dirty businesses)- but it is the best system there is for your RESIDENTIAL carpet cleaning needs.