lmfao,you just stick it in,there is a little hole down there, lol great video but how would vinegar not make your house smell weird? it has a strong smell already,judging on the way you speak you probably would not know if there is a chemical reaction in the bissel solution that conters the smell of vinegar??? i use vinegar to clean rust so i guess if it can remove rust from metal it can remove stains from carpet??