The carpets in my '95 are absolutely TRASHED! They are stained, discolored, and smell weird (helped only with a huge amount of air freshener). I have a Shop-Vac 20 gallon wet/dry which has super suction. I wanted to shampoo my carpets and pull the shampoo with the shop-vac. However, I have never shampooed carpets and couldn't find a tutorial anywhere. I have a ton of questions, like how to rinse without getting mold, what kind of shampoo to use... I am super confused and I just need a tutorial badly. Help is really appreciated, thanks guys!