Hydraulic Engineering Consultancy Services
RSP Consulting delivers comprehensive hydraulic engineering consultancy services across commercial, residential, health, education, industrial and mixed-use developments. Our experienced hydraulic services engineers provide practical, compliant and sustainable solutions covering water supply, drainage, gas reticulation and water reuse systems.
As a specialist hydraulic engineering services company, we provide detailed hydraulic engineering design services that integrate performance, compliance and long-term reliability into every project.

Hydraulic Engineering Design Services
RSP Consulting provides comprehensive hydraulic engineering consultancy and design services for commercial, industrial, healthcare, education, residential and mixed-use developments. Our experienced hydraulic engineers deliver practical, coordinated and sustainable water, drainage and gas solutions that support efficient building operation and long-term performance.
Our services include:
- Authority metering
- Domestic cold and hot water systems
- Sanitary plumbing and drainage
- Trade waste drainage
- Pressure drainage systems
- Roof drainage systems
- Rainwater harvesting and reuse
- Solar hot water systems
- LPG and natural gas reticulation
- Specialist hydraulic systems
Our hydraulic designs are developed in accordance with the National Construction Code (NCC), Australian Standards and project-specific sustainability objectives.
Authority Metering
Accurate and compliant authority metering is essential for water and gas supply.
Our services include:
- Coordination with water authorities
- Meter sizing and location planning
- Multi-tenant sub-metering strategies
- Compliance with local authority requirements
We ensure early authority engagement to streamline approvals and avoid project delays.
Water Supply & Hydraulic Infrastructure
Reliable hydraulic infrastructure is fundamental to the performance of every building. We design efficient water supply systems that provide consistent pressure, reliable operation and ease of maintenance.
Our services include:
- Authority metering and utility coordination
- Domestic cold water systems
- Domestic hot water systems
- Booster pump systems
- Pipe sizing and hydraulic calculations
- Pressure management
- Hot water plant coordination
- Warm water systems (where required)
Our engineers work closely with architects and other building services consultants to deliver coordinated, practical hydraulic solutions.
Pressure & Vacuum Drainage Systems
For complex sites or constrained developments, we design:
Pressure Drainage Systems
- Pumped wastewater systems
- Storage and transfer tanks
- Control and alarm systems
- Vacuum Drainage Systems
Vacuum pump stations
- Reduced pipework gradients
- Flexible routing in high-density buildings
These solutions allow efficient drainage in locations where traditional gravity systems are not viable.
Sanitary Drainage & Trade Waste
We design sanitary and trade waste systems that provide safe, compliant and efficient wastewater management for a wide range of developments.
Our services include:
- Sanitary plumbing systems
- Sanitary drainage systems
- Pressure drainage systems
- Trade waste drainage
- Grease arrestor coordination
- Pumped wastewater systems
- Pipe sizing and routing
- Venting systems
Where project requirements demand, we also provide designs for specialised drainage solutions, including vacuum drainage systems.
Water Supply Systems
Reliable water reticulation is fundamental to building performance.
Domestic Cold Water Systems
- Hydraulic calculations and pipe sizing
- Booster pump systems
- Pressure management
Domestic Hot Water Systems
- Storage and instantaneous systems
- Circulation loop design
- Energy efficiency optimisation
Hot Water Boiler Systems
- Boiler selection and sizing
- Plantroom layout coordination
- Integration with solar and mechanical systems
Warm Water Systems
- Temperature control for health facilities
- Legionella risk management
- Compliance with health regulations
Our hydraulic engineering approach ensures stable pressure, efficient distribution and user comfort.
RO Water Systems
We design specialised Reverse Osmosis (RO) water systems for laboratories, healthcare facilities and commercial applications requiring treated water.
Our services include:
- System sizing and storage
- Treatment equipment coordination
- Integration with domestic water systems
- Maintenance access planning
Solar Hot Water Systems
Sustainability is central to modern hydraulic design.
We provide engineering for:
- Solar hot water systems
- Collector sizing and orientation
- Storage integration
- Supplementary heating coordination
These systems reduce energy consumption while supporting regulatory compliance and sustainability targets.
Backflow Prevention
Protecting potable water supplies is critical.
We design and coordinate:
- Backflow prevention devices
- Cross-connection control
- Testing and maintenance access
- Authority compliance documentation
Our hydraulic services engineers ensure water safety and regulatory compliance.
Roof Drainage Systems
Effective stormwater management protects both buildings and occupants.
We provide design for:
- Roof drainage systems
- Box gutters and downpipes
- Overflow provisions
- Hydraulic capacity calculations
Our solutions minimise overflow risk and ensure compliant stormwater discharge.
Rainwater Collection & Re-Use
RSP Consulting designs sustainable rainwater collection and re-use systems, including:
- Tank sizing and placement
- Pump systems
- Filtration and treatment
- Integration with irrigation and toilet flushing
Rainwater harvesting systems contribute to reduced potable water demand and improved environmental performance.
Grey Water Systems
We provide engineering for compliant grey water systems, supporting:
- Water reuse strategies
- Treatment systems
- Reticulation for non-potable applications
- Authority approvals
Grey water reuse reduces water consumption and supports sustainability goals.
Swimming Pool Systems
Our hydraulic engineering services extend to:
- Swimming pool circulation systems
- Filtration and dosing equipment
- Balance tank design
- Backwash and drainage coordination
We ensure safe, efficient and compliant pool operation.
LPG & Natural Gas Systems
We design compliant LPG and natural gas reticulation systems, including:
- Gas meter coordination
- Pipe sizing and pressure regulation
- Safety devices and isolation valves
- Integration with hot water and mechanical plant
Our gas engineering ensures safety, compliance and reliable energy supply.

Integrated Hydraulic Services Approach
Our hydraulic engineering consultancy follows a structured process:
1. Demand & Capacity Assessment
Establish water, drainage and gas requirements based on occupancy and building use.
2. System Selection & Coordination
Determine the most suitable plumbing, drainage and gas solutions for efficiency and compliance.
3. Detailed Hydraulic Engineering Design
Produce coordinated documentation covering sanitary plumbing systems, water reticulation, drainage and sustainable water reuse systems.
4. Compliance & Authority Engagement
Ensure designs meet Australian Standards, NCC requirements and authority regulations.
Why Choose RSP Consulting for Hydraulic Services?
- Experienced hydraulic services engineers
- Comprehensive hydraulic engineering design services
- Expertise in sanitary plumbing and drainage systems
- Strong focus on sustainable water reuse solutions
- Integrated water, gas and stormwater engineering
- Practical, coordinated documentation
RSP Consulting delivers reliable and efficient hydraulic services engineering solutions that protect public health, optimise water use and support high-performing, compliant buildings from concept through to completion.
Hydraulic Services FAQ
What does a hydraulic engineer in Melbourne do?
A hydraulic engineer in Melbourne designs water, drainage and gas systems including plumbing, stormwater, sewer and water reuse systems, ensuring compliance with Victorian regulations and standards.
What hydraulic services are required for Melbourne buildings?
Typical hydraulic engineering services in Melbourne include sanitary plumbing, drainage systems, roof drainage, hot and cold water systems, rainwater harvesting, grey water systems and gas reticulation.
Are water reuse systems required in Melbourne developments?
While not always mandatory, rainwater collection and grey water systems are commonly implemented in Melbourne to meet sustainability goals and reduce potable water consumption.
What approvals are required for hydraulic services in Victoria?
Hydraulic systems in Melbourne must comply with local water authority requirements, including approvals for authority metering, backflow prevention and trade waste systems.
Why is backflow prevention important in Melbourne?
Backflow prevention devices are required across Victoria to protect drinking water supplies from contamination and must comply with local authority regulations and testing requirements.