So I broke down the tank and there is a ring in the carpet from the tank stand. It appears the spilled saltwater over the last 7 years has removed some of the wood stain and it's stained the carpet.
If it is organic, then some common floor spot/stain remover will get it. If not organic, then you might need a pro. We have had lots of luck with hot water in our rug doctor to get out most stuff.
Not really. Most of them are pretty much the same at our level. The Folex stuff at Home Depot is pretty good for general things - organics. The one for auto carpet are more intense - you can get these at any car parts store. Anything beyond those is out of my reach.
