Opening Adjacency Lab…
Water Demand & Tank Sizing
How much water a building uses in a day, and how big its underground cistern and elevated tank should be. A reserve for firefighting can be added and is kept separate from the domestic supply.
- Average daily water demand from the occupancy.
- Underground cistern size.
- Elevated or roof tank size.
- An optional fire reserve, shown on its own line.
- Follows: Revised National Plumbing Code of the Philippines, as planning guidance.
- The demand rates are planning inputs. Check the plumbing provisions your locality adopts and what the water utility and fire authority require.