The in-depth effect of hot water means the WAVE method is efficient, and a clean and even street aspect can be achieved with relatively few treatments over the entire year. High quality is ensured for a relatively low price. With a view to guaranteeing the high quality standard of the WAVE method, we have several practical situations investigated by an independent research bureau each year. The reports reveal that the WAVE method easily meets the quality required. The in-depth effect means that WAVE is very well placed to deliver a CROW A or high B quality with actual costs. Experience shows that using the WAVE method against weeds cuts weed pressure structurally over time. This shows that the WAVE method not only manages but also really suppresses.