Water damage can come in many flavors, with a release of a bucket to a complete basement flooding. As you approach your carpet clean up will also depend on water quality if clean water, rainwater, or a sewer backup. Each situation must be assessed individually, but here are some general guidelines.
First, the obvious attempt to keep the water at source and prevent further damage. Go behind the walls as water may be trapped ininsulation or vapor barrier behind. Next remove all furniture from the room, remove the sides of the carpet and remove and discard the uderpadding. Remove as much water as possible, so try to do this whenever they can, as bacteria can form and act quickly.
Note – depending on the size and extent of the damage that is worth asking a crime. After pulling as much as possible the water as possible, treat carpets with a disinfectant. Finally, the carpet to strutair flow to enter and pull the carpet leaves fans to speed drying.
Unsanitary water has more health problems and concerns, and you have some relief. Use rubber gloves and rubber boots are a must. I would recommend calling a professional technician that problem. The lesion is not isolated to only carpets could be spread gypsum, insulation and wood studs. This type of water damage if not handled correctlycould be a serious risk to health.