Hi Chris
my first question would be . Why did you apply sod met on to it in the first place?
Reading fro your post it seems you you applied directly onto the stain and 1001 with out first of all removing the 1001 and attemting a straight forward hwe, sos met may well react with 1001 , i wouldnt know tbh but this should have been your first task, and why would you extract the sod met ? the process needs to be left and is self neutrilising . i would say go back and extract then apply sod met and speed up the operation by drying with hair dryer, see what sort of result you get doing this.
geoff