We usually go to the Marsh and get a rug doctor. Use hot water and oxyclean in the tank. It's worked for us in a pinch like that.
If u want professional let me know
Getting our houses' carpets cleaned has been on the list so now the current circumstances has made it a priority. Your idea does sound great for small jobs though and I will keep it in mind.
Yes, I'm looking for a reputable company to come to my house.