Geco - Prozyme Zero Flush 

A concentrated, biological based, environmentally friendly and biodegradable toilet water
neutraliser used to convert organics into safe nutrients and eliminate bad odours. Zero Flush does
not simply mask the odour but eliminates the organic substances that causes bad odours and prevents the return of bad odour-causing compounds. The biological solution of Zero Flush allows you to leave urine in the toilet bowl without enduring the unpleasant smells associated with the stagnant urine malodour. Specially formulated to neutralise urine, Zero Flush reduces the amount of flushes needed to clean toilet bowls while conserving clean water. It is readily biodegradable, non-toxic, environmentally friendly and safe to use around humans, animals and plant life.