With land far too soft for many farmers to even think about going out with a slurry tanker, I have heard of instances where farmers have turned to the use of a rain gun to spread slurry and take the pressure off heavily filled tanks. Farmers should be aware that they are placing their Basic Payment at risk by doing so, while also opening themselves up to a fine. It is prohibited to spread slurry with the use of an upward-facing splash plate or sludge irrigator on a tanker. Sludge irrigator is the legal term for what many of us may know as a rain gun. The use of rain guns has been prohibited since 2006. However, some farmers continue to use them.