Question

What is a down feed or gravity system in plumbing, and how does it function to ensure a reliable water supply in a building, particularly in situations with potentially inadequate supply flow?

Answer 1

A down feed or gravity system in plumbing is a method of ensuring a reliable water supply in a building, especially in situations with potentially inadequate supply flow. It relies on gravity to provide water pressure and flow throughout the building. The system involves a water storage tank on an elevated level or at the top of the building, which uses gravity to push the water down through the pipes, ensuring consistent water supply to all fixtures and appliances.

Step-by-step explanation:

In plumbing, a down feed or gravity system is a method of ensuring a reliable water supply in a building, especially in situations with potentially inadequate supply flow. This system relies on gravity to provide water pressure and flow throughout the building. Here's how it works:

1. The down feed or gravity system starts with a water storage tank located on an elevated level or at the top of the building.
2. Water from the main water supply is pumped into the storage tank.
3. Due to the elevation of the tank, the water in the tank creates pressure, which allows it to flow down through the pipes in the building.
4. As the water flows down, it provides the necessary pressure to ensure consistent water supply to all fixtures and appliances in the building.
5. When a faucet or appliance is turned on, the pressure created by the water in the storage tank forces the water to flow out of the fixture or appliance.
6. The gravity system eliminates the need for additional pumps and ensures a reliable water supply even in situations where the supply flow is inadequate.