(06-29-2015, 07:22 PM)Lounge Lizards Wrote: Hi Bernd, if the spot disappears, then resurfaces after it dries, or a couple of days later, it sounds more like a wicking problem to me, and NOT cellulosic browning/water spots.
One thing I have found with the product I use for cellulosic browning, is that when it makes contact with the problem, it tends to fizz up.
Most times I get rid of the problem in one hit, especially if mixed with hot water or friction from the agitation of the Cimex or Sprayborg.
Rarely do I have to return.
If there is an oil based product left at the base if the fibres, this may cause wicking as you have described.
Is the carpet direct stick (glued down) or a fitted carpet??
Do you know what the carpet fibre is??
I think it is glue down. I do not know the fiber. It is a looped carpet...very strong/ hard.
As you have read i thought of using Punch, but i am not sure. The spot is getting lighter but still there.