Club soda works wonders on a variety of water soluble stains.I suggest you always keep a can of club soda on hand at room temperature. Club soda is carbonated water; thus, club soda will not cause any damage to the carpet backing. You can slowly drizzle a small amount directly on the spill, but we caution you to not soak the carpet. Club soda does not leave a residue and therefore does not need to be rinsed out. In fact, club soda can be used as the rinsing agent for other cleaners.