Booster Pump Set Maintenance Checklist
A maintenance checklist for cold water booster pump sets covering pump inspection, pressure vessel checks, control panel verification, and water hygiene compliance for boosted water supply systems.
What is a booster pump set maintenance checklist?
A booster pump set maintenance checklist is a structured list of the 11 preventive maintenance tasks — covering visual, functional, safety and record-keeping checks — that keep a booster pump set running safely and reliably. It groups routine checks by frequency, from daily inspections to annual servicing, so FM teams and building engineers can plan and evidence preventive maintenance.
Core booster pump set checks
- Inspect the break tank for cleanliness and correct water level (where fitted)
- Check pump for noise, vibration, and seal leaks
- Check the RPZ valve or type AA/AB air gap for backflow prevention
- Record pressures, pump currents, and operational hours per pump
What is a booster pump set?
A booster pump set increases incoming mains water pressure to ensure adequate flow and pressure to upper floors and remote outlets in multi-storey buildings. The set typically includes multiple pumps (duty/assist/standby), a pressure vessel, a control panel with inverter drives, and pressure transducers. Booster sets must comply with Water Supply (Water Fittings) Regulations to prevent contamination of the public supply.
This checklist is one of 25 in our plumbing and water system maintenance checklists, covering pressurisation units, booster sets, storage tanks, TMVs and water treatment — pressure, hygiene and legionella control.
Typical Booster pump set maintenance checklist
A practical starting point for planned preventive maintenance. Always refer to the manufacturer's O&M manual and site-specific requirements.
Visual Checks
- Inspect the break tank for cleanliness and correct water level (where fitted)
- Inspect pipework, valves, and flexible connections for leaks
Functional Checks
- Check pump for noise, vibration, and seal leaks
- Verify each pump runs and achieves design pressure
- Test duty/standby changeover and cascade sequencing
- Check pressure vessel pre-charge
- Verify pressure transducer readings match a reference gauge
- Check float valve operation in the break tank
- Verify inverter drive operation and fault logs
Safety Checks
- Check the RPZ valve or type AA/AB air gap for backflow prevention
Record Keeping
- Record pressures, pump currents, and operational hours per pump
Download the free Booster pump set maintenance checklist PDF
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Typical maintenance frequency
Suggested intervals for booster pump set maintenance. Actual frequencies should follow manufacturer guidance and site-specific risk assessments.
Monthly
- •Visual inspection of pumps and break tank
- •Check system pressures
Quarterly
- •Test changeover sequence
- •Check pressure vessel
- •Inspect break tank cleanliness
Annually
- •Full pump service including seal and bearing check
- •Inverter inspection
- •Break tank clean and inspection
- •Backflow prevention device test
Common faults and issues
Issues to be aware of when maintaining booster pump set equipment.
Safety and compliance notes
Key safety considerations for booster pump set maintenance. This is general guidance only — always follow OEM instructions, statutory requirements, and your organisation's safe systems of work.
Reference standards and frameworks
- United Kingdom
- SFG20 schedules and CIBSE Guide M
- North America
- ASHRAE/ACCA Standard 180 and Hydraulic Institute maintenance guidance
Frameworks commonly referenced when planning booster pump set maintenance programmes. Always confirm the requirements that apply to your site and jurisdiction.
Managing Booster pump set documentation with PM Assist
PM Assist helps FM and building operations teams search their O&M manuals and building drawings in seconds. Upload your booster pump set documentation and ask questions like “What is the design duty point?” or “When were the pump seals last replaced?” — and get source-cited answers instantly.
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Related free tools
Related maintenance checklists
Further reading on booster pump set maintenance
Compliance topics for booster pump set maintenance
Frequently asked questions
Why do buildings need booster pumps?
What is an RPZ valve on a booster set?
Why is my booster pump short-cycling?
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