Do rental carpet cleaners work?

if you watch a carpet cleaner at work and still think yes then you need your head examining.

I HAVE USED HIRED CLEANERS FROM WOOLWORTH'S IN NSW - TWO TYPES ARE AVAILABLE - THE BARREL CLEANER WORKS WELL WITH HOT WATER. HOWEVER YOU DO NEED TO BUY WITH IT THE HEAVY DUTY DUTY CLEANING PRODUCT AND FOAM STOPPERS.
HOWEVER, IF YOU ARE A TENANT AND CLEANING THE CARPET IN AN ATTEMPT TO GET YOUR BOND BACK, FORGET IT - HIRE A PROFESSIONAL CLEANER, MAKE SURE YOU GET A RECEIPT AND ON THAT RECEIPT HAVE THAT CLEANER WRITE - ON OFFICIAL LETTER HEAD STATING NOT ONLY CARPET CLEANED AND DEODORISED AND IN THERE OPINION AT THE CARPET WAS CLEAN. HOPE THIS HELPS