Some advice on Berber Wicking

[Greg Cole]

but YELLOW isn't a color we see associated with soil wicking.
It's generally an indicator of too high PH bath tub gin pre-sprays .
I've seen it with home owners dumping oxy-clean on their white/light colored carpets too
..L.T.A.

I have learned something new today! Wasn't aware that oxy-clean would cause chemical yellowing. Good to know! Thanks.
FYI- you are totally right in your answer.
As I am in Tampa and totally bored Friday- I'd be happy to meet him and show him how to fix it.