¤  Fixture unit load calculations
¤  Establish cold water demand load (gpm)
¤  Establish main pipe size & co-ordinate entrance location with civil
¤  Locate expansion loops for seismic requirements
¤  Check water pressure requirements
¤  Booster pump selection
¤  Research requirements for water softeners
¤  Specify plumbing fixtures
¤  Underground and above ground pipe routing
¤  Hot water Re-circulation
¤  Heat trace systems
¤  Water heater selection
¤  Storage tank selection