harryhides
Member
In 20 yrs of doing Inspections of Carpet mystery stains for Insurance Companies, this one has to be one of the strangest.
Well kept 20 yr old home, two seniors live here, no kids and no pets.
Carpet is less than 6 months old.
Break and enter hoods took off with some loot and left no damage except this very strange line you see running up approx ten steps of the stairs but ONLY on the risers. Note the bottom few and the the top few were unaffected. The steps and the bull noses are all clean ?? Yeeeeeah, I know !!
Checked for pH = neutral.
Tested with clean white towel and water, an acid spotter, a solvent and an alkaline spotter - nothing - no response at all.
The lines do fluoresce under a UV light though.
Any ideas or theories of how a line like this could have been created and what product could have caused it.
I have scratched my head a few times on this one and no clue.
Well kept 20 yr old home, two seniors live here, no kids and no pets.
Carpet is less than 6 months old.
Break and enter hoods took off with some loot and left no damage except this very strange line you see running up approx ten steps of the stairs but ONLY on the risers. Note the bottom few and the the top few were unaffected. The steps and the bull noses are all clean ?? Yeeeeeah, I know !!
Checked for pH = neutral.
Tested with clean white towel and water, an acid spotter, a solvent and an alkaline spotter - nothing - no response at all.
The lines do fluoresce under a UV light though.
Any ideas or theories of how a line like this could have been created and what product could have caused it.
I have scratched my head a few times on this one and no clue.