Ron Werner
Member
I didn't think these old urine spots would come off this wool berber.
I presprayed O2 only, using an inline sprayer, about 16-20oz O2 (I glugged into an already used batch) in 11 qt spraymaster jug, at 9:1 mix (yellow tip)
Before
After Prespraying there is a shadow in the middle, not a discolouration (discoloration-for y'all south of the border :wink
After Cleaning
A video of it disappearing

I presprayed O2 only, using an inline sprayer, about 16-20oz O2 (I glugged into an already used batch) in 11 qt spraymaster jug, at 9:1 mix (yellow tip)
Before
After Prespraying there is a shadow in the middle, not a discolouration (discoloration-for y'all south of the border :wink

After Cleaning
A video of it disappearing