The wrong chemicals used can damage your carpet!
The most common mistake I see day in day out, is chemicals being used that completely destroy or permanently stain wall to wall carpeting. Sometimes when this happens your only option may be a carpet repair!
High alkaline shampoos (which are used to break up grease) are being injected into wool rich carpets, from domestic hired carpet cleaning machinery. Not only do these solutions damage the appearance of wool which causes fuzzing, a ph level of 14 can alter the chemical structure reversing the magnetic charge for dyes to fuse to wool. Leading to colour bleed or even stripping the colour, especially carpets constructed from nylon.