Domestic water distribution system using a manifold (collecteur) to supply multiple fixtures. The main water supply (arrivée réseau d'eau) feeds into the manifold, which then distributes water through multilayer pipes (tube multicouche) to various household appliances and fixtures. Each outlet from the manifold is equipped with a valve (vanne), allowing individual control of water flow to specific fixtures. The system supplies a bathtub or shower (bain/douche) with a 20mm diameter pipe, a toilet (W-C) and sink (lavabo) with 16mm diameter pipes, and a washing machine (machine à laver) with a 20mm diameter pipe. This type of distribution ensures balanced water pressure and efficient water management across different appliances. The use of multilayer pipes enhances durability, reducing the risk of leaks or corrosion over time. Such a setup is common in modern plumbing to simplify maintenance and optimize water supply.