What type of supply hose is specifically designed to draft water from a static source?

Hard suction hose is specifically designed for drafting water from a static source, such as a lake, pond, or tank. This type of hose is constructed to withstand the negative pressure created when water is drawn from these sources. It maintains its shape under vacuum conditions and prevents collapse, allowing for effective water intake. The rigid nature of hard suction hose enables it to be submerged in the source while still effectively drawing up water.

Soft suction hoses, on the other hand, are not designed for drafting but rather for supplying water to a firefighting apparatus from a pressurized water source. Medium-diameter hoses are typically used for moving water but don't possess the structural integrity needed for suction purposes. Lastly, large-diameter hoses are primarily used for supply lines in large volume applications, again focusing on flow from pressurized sources rather than for drafting. Thus, hard suction hose is the correct choice due to its specific design for drafting from static sources.