To obtain a liquid of a small cluster by applying the energy of nuclear magnetic resonance microwaves to liquid passing through an intake pipe, a feed pipe, or a sewer pipe and to provide a storage shed for preserving the liquid of a small cluster.

From the outside of the intake pipe, the feed pipe, or the sewer pipe, a substance generating nuclear magnetic resonance microwaves is set at a position opposite to the diameter, the substance is additionally placed on the inside or outside of the storage shed, and a turn table is placed on the bottom surface of the shed.