Spa and Hot Tub Hygiene: Best Practices for Commercial Operators

Commercial spa and hot tub operators face unique challenges in maintaining water quality and user safety. This guide covers essential best practices for hygiene management in commercial settings.

Daily Operational Checks

Consistent daily monitoring is the foundation of good spa hygiene. Before opening each day, operators should:

• Test and record free chlorine or bromine levels (maintain 3-5 mg/L for spas)
• Check and adjust pH (target 7.2-7.6)
• Monitor water temperature and record readings
• Inspect water clarity and check for foam or odours
• Clean skimmer baskets and remove debris
• Check filter pressure and operation

Weekly Maintenance Tasks

• Backwash or clean filters according to manufacturer guidance
• Test total dissolved solids (TDS) and alkalinity
• Shock treat if required (after heavy use or elevated microbial counts)
• Inspect all accessible pipework and fittings
• Take water samples for laboratory analysis (TVCs)

Monthly and Quarterly Procedures

• Full drain and refill (frequency depends on bather load)
• Deep clean of all surfaces including tile grouting
• Legionella sampling from representative points
• Review and update risk assessments
• Calibrate testing equipment

Regulatory Compliance

Commercial spa operators must comply with various regulations and guidelines, including:

• Health and Safety at Work Act 1974
• COSHH Regulations for chemical handling
• HSG274 Part 3 - Hot and cold water systems
• Pool Water Treatment Advisory Group (PWTAG) Guidelines
• Local authority environmental health requirements