On the day of cleaning we will decide on the method of application unless it is already planned. The primary factor that determines how we apply a chemical is solely focused on safety. If we plan to spray the chemical we must determine where any potential overspray may reach and if this poses a threat to members of the public passing by, local flora and fauna and waterways etc. We will also check the weather and if the day of cleaning has strong winds, then we will again have to consider the potential of overspray. If applying the chemicals via spraying is determined not to be the best option, then we can use out chemical backpacks with our water fed poles and brush to brush the chemicals onto the surfaces. This mitigates all risks of potential overspray.