Place this to purchase/fill multiple materials
If you are filling equipment with multiple products (like a seeder with fertilizer and seed) you will have to move away from the placeable before you can fill with the second product. This is due to the silo/tanks having multiple products. It would be no different than having to go to another placeable.
WATER LIQUID FERTILIZER HERBICIDE FERTILIZER LIME SEEDS FORAGE PIGFOOD
Water is free, all other products are set to sell at the same rate set by the map you are playing.