With large-tank agricultural sprayers, the water/chemical solution is usually pumped or poured through a lid on top of the tank-a task that may be difficult for a farmer with limited arm strength, leg or hip problems, or a back injury. If such is the case, one should consider installing a Sprayer-Tank Platform Extension that provides a place to stand near the tank opening. Depending on sprayer model, an extension can be custom-fabricated for around $400; however, it's important that it meet ASABE standards for safety.