If you have urinals in your business it is well worth revisiting the sensor flusher controls in place. Urinals are often set to flush notwithstanding of use. This wastes a lot of water – especially out of hours. Typically, unrestrained urinals will flush around three times per hour, every day of the year. For example, a urinal with a 7.5 liter cistern will be using 197 m3 water/year, costing ₹25000/ - on average in water charges; for larger cisterns this would be even more. A number of devices can be used to control flush frequency, many which can be retrofitted, and can reduce water use by 75% or more.