Water cooler has leaked onto carpet and been left for several weeks and water cooler supplier has previously called in Chemdry to clean up the damage (twice)
This has resulted in a dark water stain approx 1 mtr diameter where the machine had stood,client has now cancelled the water contract and had all coolers removed.
Carpet is office grade,blue in colour with bits of orangey fleck in it,felt backed approx 3 yrs old.
I don't have a problem hwe this carpet but am a bit concerned about what solution chemdry would have attacked the carpet with,not sure how it was cleaned first time but pretty sure it was hwe the second time as he left his wand behind. :

Same problem in another area same type of carpet but green,severe water staining,want to do the best job possible as this is one of our office cleaning contracts. Any advice appreciated.
John