Add one tablespoon of detergent into one glass of water.
Carpet stain remover old stains.
According to good housekeeping this helps soak the stain from the carpet.
How to remove old stains from carpet with water and detergent mixture this mix works best for dark stains like polish lipstick particles coffee and other dark base items.
Use a clean cloth to apply this solution to the stain from the edges inward.
Dry working from the outside in.
Vacuum the baking soda crumbs from the carpet.
To remove carpet stains.
Rinse thoroughly with clean hot water.
Place five to eight paper towels on top of the stain and weight it down with a heavy item.
Here s a step by step guide to how to remove old stains from carpet with vinegar.
Mix it well to make a foamy mixture.
Never scrub the carpet or you risk ruining the carpet fibers or letting the spill soak through to the carpet pad.
Blot with a clean dry towel to help lift more of the stain.