Unblock drainage (sinks/urinals/floor drains)

• Remove trap debris, rod/auger line, enzyme flush
• Checks: Free-flowing in ≤10s, no leaks/odour

Replace sink traps (bottle/P/S)

• Fit new trap and washers, align and seal
• Checks: Joints dry under full flow

Unblock toilet system (WCs/stacks)

• Plunge/auger; rod branch if needed; correct cistern fill/flush
• Checks: One-flush clear, no seepage at pan connector

Replace sinks/basins

• Deinstall, reseat with clips/silicone, reconnect taps/waste
• Checks: Level, continuous bead, no leaks (plug test)

Tap repairs/replacements

• Renew washers/cartridges; descale aerators; install new monoblocs with isolators
• Checks: Smooth action, no drips after 5 min

Cistern internals

• Replace inlet/flush valves or syphon; set waterline
• Checks: Refill <60s, no continuous flow

Urinal maintenance

• Descale lines, replace cartridges, verify sensors/solenoids
• Checks: Even rinse, odour-free

Re-silicone & re-bed wastes

• Remove failed sealant; rebond and reseal
• Checks: Uniform bead, no weeping

Install/replace isolation valves & label stops

• Fit/replace valves; label shut-offs
• Checks: Operable, no seepage

TMV service & outlet temps

• Clean/descale; set 41–43 °C; log readings
• Checks: Stable within ±2 °C

Legionella control

• Flush low-use outlets; temperature checks and records
• Checks: Hot ≥50 °C @1 min; cold ≤20 °C