Berthoud's advices for proper winterizing your sprayer A good winterizing of you sprayer contributes to a better life of your equipment. The maintenance of the end of season is essential to prepare your sprayer for the next season and ensure its preservation during the winter. Here are tips that gives you BERTHOUD concerning this operation. Once the final sprawing is complete, it is recommended to drain and flush your device and perform the following operations: Clean the inside and outside of the sprayer with clean water and a cleaner , Apply antifreeze in the sprayer circuit , Check the pomp and its oil level, Reset the pression of the air bell, Check the regulation, <