Fabric softener combined with Borax makes a great carpet cleaner.Without the harsh chemical smells that commercial Carpet/Deodorizers/Cleaners will.
My carpets have never looked or felt so clean.Static was always a problem after a shampoo by the professionals. Now I just make my own solution.Cheaper in the long run.Pet friendly,and doesn't leave a sticky residue behind.Carpets in the high traffic areas seem to stay cleaner for longer periods of time.
1/c cup Borax
2 caps your favorite liquid fabric softener
1 Gallon bucket of hot water
Mix thoroughly,use the amounts recommended by the carpet cleaning machine. I have the Hoover,so just add the solution to the fill line.
Munky.