Two-pump water booster system
A booster pump system is used to pump water into a building's supply line and hold a constant, pre-set pressure. In Singapore there are two common types of water booster pump system:
- One-pump water booster system
- Two-pump water booster system
Waves Fluid Engineering Pte Ltd has expertise in both systems. Which one suits a building depends on a few factors — mainly the available space and the number of water outlets to be served. We assess your site and recommend the right configuration.
Where a two-pump system is used
High-rise and high-demand buildings need water delivered at constant pressure to every floor and outlet. A two-pump (duplex) booster system is built for exactly this — and it must be fed from a water storage tank.
Condominiums
Terrace houses
Industrial buildings
Shopping complexes
Commercial buildings
Why choose a two-pump (duplex) system
Built-in redundancy
If one pump is taken out for service, the second keeps water flowing — no shut-down of the building's supply.
Constant pressure
Holds a steady pre-set pressure across every floor and outlet, even when demand changes through the day.
Load sharing
The pumps share and alternate duty, reducing wear and helping the system last longer.
Designed for demand
Sized to each building's flow requirement, making it ideal for high-rise and high-outlet premises.
Parts involved
A complete two-pump water booster system is made up of the following:
1
Two pumps sized to the design requirement.
2
One control panel to regulate the pumps and alarm on any part failure.
3
One or more pressure vessels based on the design requirement.
4
Two pressure switches to control pump operation.
5
One pressure gauge for monitoring system pressure.
6
Valves & fixtures — check valves, gate valves, Y-strainer and rubber expansion joints.
7
A by-pass line to keep water supplied to the line if the pump system fails.
How Waves Fluid Engineering helps
Our field technical team carries out the following at your premises, whether you need a brand-new system or a repair to an existing one.
New system
For a new two-pump system
- Design the system from your drawing, or collect the consultant's drawing with pump requirements.
- Suggest a few suitable brands for your selection.
- Quote based on the brand you choose.
- Install the new system, including testing and commissioning.
Repair
For a faulty system
- Visit your premises at a time convenient to you.
- Identify the problem in the existing system or parts.
- Quote based on the faults identified.
- Carry out the corrective works.
Project gallery
Warranty
One-year warranty on parts we install
All spare parts we use are genuine parts from globally recognised manufacturers. We provide a one-year warranty against products changed and/or installed by Waves Fluid Engineering Pte Ltd at your premises.
Frequently asked questions
What is a two-pump (duplex) water booster system?
It is a booster set that uses two pumps working together to keep water at a constant, pre-set pressure throughout a building. It draws water from a storage tank and is sized to each building's flow and number of outlets.
When should I choose a two-pump system over a one-pump system?
Two-pump systems suit high-rise and high-demand buildings — condominiums, terrace houses, industrial buildings, shopping complexes and commercial buildings — where constant pressure is needed across many outlets. The right choice depends on available space and the number of water outlets; we advise after assessing your site.
Do I need a water tank for a two-pump booster system?
Yes. A two-pump water booster system must be fed from a water storage tank — it boosts water drawn from the tank into the building's supply line.
What happens if one pump or a part fails?
The control panel raises an alarm, the second pump provides redundancy, and the by-pass line can keep water supplied to the line while repairs are carried out — minimising disruption to the building.
Do you provide a warranty?
Yes. We use genuine spare parts from globally recognised manufacturers and provide a one-year warranty on products changed and/or installed by Waves Fluid Engineering at your premises.
Can you repair an existing or faulty system?
Yes. We visit at your convenience, identify the fault in the existing system or parts, quote based on the findings, and carry out the corrective works.
Need a quotation for a two-pump system?
Call +65 9487 0446 or email sales@wavesfluid.com.sg for further details and discussion.
