Most homes combine council supply with storage because supply is intermittent.

• Mains inlet and meter, usually at the gate, with a stop valve.
• Storage tank: ground tanks feed a booster pump; roof tanks feed by gravity.
• Pressure: gravity tanks give low pressure on upper floors; pumps with a pressure switch or controller fix this.
• Hot water: electric instant showers, storage geysers or solar geysers with an electric backup.
• Waste: separate soil (toilet) and waste (sinks, showers) lines to a sewer or septic tank.