When purchasing a glass piece, you always need to keep in mind the cleaning part. Many people suggest alcohol and rock salt, or alcohol and rice. Personally, my experience has not been the best... There are very affordable solutions you can purchase at Illusions Vape Smoke Shop, to make your pipe look like NEW literally. Grunge off is my personal favorite: It is a super soak-er that can be re used, until it turns black. It has no harmful abrasives, you do not need to scrub, it is alcohol free, and you do not need to shake it before using. It it priced on sale now, for $13. The Orange Chronic and the 420 Solution are also very very good and are non- alcoholic. Cleaning you water pipe once a week will help your glass stay crispy clean and not let residue build up.