okay this is filming a it's a Volkswagen late-model Volkswagen and they've had four liters of milk spilt in the front passenger seat and it's been left for what's been cleaned a few times but unsuccessfully and it's now producing very very strong odor and I've just tipped it on the floor and you can see where it is foaming that is a major contamination there and over here you see it's not foaming that means there's no contamination there it's a good indication so looking back there it starts about there and moves back that way so you can see if we go up close that that is bubbling in see it still bubbling as soon as it stops bubbling it's time to get a wet back and pull it out of the carpet and then smell the carpet again if there's still over persisting do do it again and then just do it basically until you can no longer smell it a good idea if you want you to flush the carpet out afterwards with fresh water back on the Volkswagen I'm just going to show you how I would extract this using a little so techo larvae machine so I'll just turn it on so you can see there's no damage to the carpet the carpet comes out still the same color I'm going to put my nose down smell that's smells pretty good to me so that's another application there the storms has come out so this car will dry nicely now so just extract all that open done it all as you can see there's still some white they have it give it a good extraction then leave it to flush it out with fresh water then leave it to dry