Carpet Cleaning Damage

As much as possible, use the mildest cleaning products available in the market on your carpet. Use only harsher ones with stubborn stains and certain spillages. Mild carpet shampoos are still always the best solution.

I must not have made that clear.  I was using my TM on a berber with an enzyme and degreaser pre-spray.  The landlord called me after her renter used a rental porty on the carpets.  Beats me why the color was faded when I arrived, but cleaning it professionally didn't help, so it wasn't soap residue.  Assuming the landlord isn't making up the fact that the carpets were fine before the renters tried cleaning them, I'm just taking a stab in the dark figuring the concentration of the soap in the porty her renters used might be what wrecked the color in the carpet.  But then I've never tried cleaning carpets with a Rug Doctor myself.  Just heard the horror stories.  I'm sure we've all been called in many times after someone tried a rental porty.

Probably used TIDE!  

It happens sometimes that there is a prior damage to the floor boards, but the people who rent the apartment are not warae of it. Can you try and contact the people who lived there before you moved in and ask them about the condition of the carpets and floors. It would help you a lot. 

Steaminpile wrote: i have troubles seeing someone getting it THAT wet,,,,rug doc or not

I agree, I once had an idiot tech clean a carpet with the drain valve wide open, the carpet was wet 24 hours later but when i pulled the carpet back the floor was dry as a bone.