Trisodium phosphate also called tsp often works where other cleaning solutions don t as long as it s used correctly.
Clean tar and nicotine stain on rug.
Scrub with a sponge or stiff scrub brush until the stains disappear.
Clean nicotine off walls using trisodium phosphate.
There are many reasons why a carpet may yellow over time but nicotine stains are one cause that is particularly nasty because of the smell.
Considered an extreme solution trisodium phosphate tackles the worst nicotine stains as it is an effective degreaser for cigarette tar.
And i ve also noticed leslie that when you re trying to remove tar and nicotine that it tends to get the cleaning solution rather muddy and then it can sort of build up and then even stain more deeply in other areas and lead to that unevenness that you re talking about.
If you have a regular smoker in the house a film of nicotine and tar will settle over your carpet and upholstery.
Use a professional cleaning service or rent a carpet upholstery cleaning machine at least twice per year.
You can usually remove nicotine stains from carpet with a homemade cleaning solution but if the stains are very deep and set in a professional cleaning.
Rinse with a rag and clean water then dry thoroughly.
Nicotine also creates a very greasy type of stain.
Regular cleaning of the entire surface of the carpet or furniture is the only way to lift the stains.
Sodium thiosulfate is commonly used in aquariums.