How to handle unknown spots?

[Bernd]

There's a measure of truth in that video though. There are some situations that can't be fixed. At some point the carpet just may be beyond hope.

Let me illustrate it this way. If you took a nice clean white shirt and wiped down the engine of your car with it - there's no way that shirt would ever come perfectly clean again. It's simply not possible. Bonafide miracles passed off the world's scene 2,000 years ago, and I don't think you or I could pull one off today. We do our best, we try real hard, but sometimes it simply can't be done.

What I would suggest is to clean SLOWLY using with a strong dilution of Encap-Clean DS2.Apply minimal moisture. Make extra scrubbing passes. Speed dry the carpet with fans and ventilation. You could also post-bonnet.
Under-promise, and do your best. You never know, you may just pull off a small miracle.

Yes, you are right. We just can do our best- and no miracles.

I noticed many customer scrub and clean their spots with unknown chemistry in every wrong way i can imagine...and during cleaning with my chemistry the spots (owners chemistry) react to incredible heavy spots...