There are two primary technologies employed to submeter water depending on how the building is plumbed for delivery of water to each unit. If the water entering an apartment can be captured at one single point for either hot or cold water, a standard ¾ “conventional” water meter is used. If there are multiple points of entry for each apartment, then a “Point of Use” technology is used. Each of the plumbing configurations is prevalent in the U.S. with an approximate 50/50 split. Both configurations and submetering solutions are described below.