Data Center Water Tanks from China: Makeup, Chilled and Fire Water Roles

A data center is a water-intensive facility in three different ways: makeup water replaces evaporative loss in cooling towers, chilled water carries the cooling, and fire water protects the asset. Each role needs a different tank design, lining, and standard, and sourcing them from one Chinese manufacturer can simplify the program. This article maps the three roles and how to specify each.

Cooling towers lose water to evaporation, drift, and blowdown, and the makeup tank stores treated water to replace it automatically. It is clean-water storage, so an inert GFS or FBE lining keeps it usable, but it is typically non-potable, so NSF/ANSI 61 potable certification is not the governing requirement unless the water is potable. Size follows local evaporation rate and the blowdown schedule.

• Replaces evaporation + drift + blowdown.
• Clean-water storage, often non-potable.
• GFS / FBE inert lining.
• NSF 61 not always required.

The chilled loop carries cooling and may include a stratified TES tank or a buffer. It needs an inert, sealed lining and, for open towers, resistance to treatment chemistry. The Sardinia process-water tank (30,549 m3, 2025) is a large coated chilled-process reference, not a data-center project.

• Carries the cooling.
• Stratified TES or buffer.
• Inert sealed lining.
• Resist treatment chemistry.

Fire water is a dedicated reserve governed by NFPA 22, sized for the sprinkler and hydrant demand and kept separate from process. The Dubai fire-water tank (652 m3, 2025) and the Indonesia Cilincing drinking-water tank (21,088 m3, 2024) are reserve and large water tanks we delivered for other critical sites, analogous evidence, not data-center projects.

• Dedicated NFPA 22 reserve.
• Separate from process.
• Sized for sprinkler demand.
• Reserve, not daily use.

Sourcing all three from one Chinese manufacturer with in-house GFS/FBE coating and flat-pack export simplifies QA and logistics, but each tank must be specified to its own standard and duty. The table contrasts the three roles.

• Shared QA and logistics.
• Each specified to its duty.
• One coating source.
• Standards differ per role.

We have no data-center water tank in this library. The drinking, fire, and process tanks cited (Cilincing 21,088 m3, Dubai 652 m3, Sardinia 30,549 m3) are analogous critical-infrastructure deliveries, not data-center projects, offered as evidence of our ability to build large coated water tanks.

• No DC water tank in library.
• Citations analogous, not claims.
• Large coated build is real.
• Specify each role.

A data center needs three water tank roles, makeup, chilled, and fire, and each demands a different design, lining, and standard, so specifying them correctly matters more than buying them from one source. Makeup water is clean non-potable storage sized by evaporation and blowdown, chilled water carries cooling often as a TES or buffer, and fire water is a dedicated NFPA 22 reserve. Sourcing all three from one Chinese manufacturer with in-house coating simplifies QA, but each tank must still be specified to its own duty, and we present our drinking, fire, and process tanks as analogous evidence, not data-center deliveries, because our library holds no data-center project.