There is a battle going on in the industry when it comes to domestic water distribution systems, and it lies in how plumbing engineers size domestic water piping. System longevity, pressure drop, water age, noise and building codes will influence the approach taken in sizing a domestic water system.
First, we need to understand the many functions of a domestic water system. Domestic water systems are used to provide clean potable water to plumbing fixtures, medical equipment, process water applications and mechanical uses. Domestic water systems bring water in from a municipal connection outside the building to many delivery points inside the building. Domestic water systems are pressurized water supply systems utilizing water pressure to “push” water thru piping to deliver to the required outlet.