History of Drano
In 1923, Harry Drackett invented crystal form of Drano as a solution for drainage blockage. Later in the 1960's Drano Aerosol Plunger, which was basically a can filled with CFC (chlorofluorocarbon) which was very harmful for the environment as it was depleting the ozone layer. Eventually, this lead to Bristol Myers buying the Drakett Company, including the ownership to Drano and other Household Products like Windex.
Later in 1970, after Earth Day the harmful propellant was eliminated, as of that Drano was now made with cheaper ingredients. However, these cheaper ingredients were highly flammable so once again it was discontinued. Later on, Clorox was introduced and a competition grew between Clorox and Drano. This rivalry, led to Drano manufacturing a liquid format of Drano which was basically Sodium Hypochlorite (bleach).
Afterwards S.C. Johnson and Son bought the Drackett Company in 1992 and started to manufacture Drano (Tubbs , 2012). Since then Drano was made in different varieties for different things with a little tweak there and here which leads to the modern Drano! The modern variations of Drano include Drano Advanced Septic Treatment, Drano Snake Plus Drain Cleaning Kit, Drano Max Gel Clog Remover, Drano Dual Force Foam, Drano Liquid Clog Remover, Drano Max Build-up Remover, and Drano Kitchen Crystal Clog Remover Clogtalk (2011).