Clarke Quay restaurant drips mid-service: drain line sags round a beam
A Clarke Quay restaurant's ceiling cassette dripped only during busy dinner service, staying dry through quieter afternoons. Converted heritage shophouses often force a drain line around an original structural beam it cannot pass through, and that detour can leave a low point that only floods under heavier runtime.
By Team Snowflake | Reviewed 11 Jul 2026
Case summary
Daikin Cassette5 years oldF&BSingapore River, Singapore
- Concern
- The restaurant manager worried the cassette's drain pan had cracked and would need a ceiling teardown to replace.
- Found
- Drain line sagging at a low point forced by routing around a structural beam, backing up under heavier water load
- Key check
- Traced the drain line's full route through the ceiling void before assuming the pan had cracked
- Result
- The cassette ran through a full dinner service without dripping. The restaurant avoided a ceiling teardown for a pan that was never actually at fault.
What we were told
The manager said the ceiling unit stayed completely dry during slow afternoons but dripped near the pass during the dinner rush most nights. It had been installed a few years earlier when the space was converted from a shophouse unit into the current restaurant. No one had opened the ceiling since.
What we checked
We treated the service-hours pattern as the first lead rather than assuming the pan had failed. A crack usually leaks whenever water reaches it; a drain line with a hidden low point tends to hold water fine at low flow and only backs up once heavier condensate volume passes through during longer, harder runtime.
The cassette pan and panel showed no visible crack or damage.
The drain line detoured sharply around an original structural beam in the ceiling void.
A section just past the beam sat lower than the rest of the run, holding standing water.
Water cleared normally once that section was flushed and re-levelled.
What we found
When the space was converted, the drain line had to route around a load-bearing beam original to the building rather than passing through it. That detour left one short section sitting slightly below the rest of the line's fall, where water could pool instead of draining away. At normal, lighter flow the pool cleared before overflowing; during a busy dinner service, the extra condensate volume backed up faster than the low point could clear, and the overflow found its way past the panel edge.
What fixed it
We re-supported the drain line to remove the low point and confirmed a consistent fall along the full run past the beam. We did not recommend replacing the cassette pan, since it was never damaged. We advised the manager to flag any future ceiling works so the drain route is checked again if the space is altered.
Outcome
The cassette ran through a full dinner service without dripping. The restaurant avoided a ceiling teardown for a pan that was never actually at fault.
What this case teaches us
A drip tied to busy service points at drain flow, not a cracked pan
- If a leak only appears during heavier runtime, check the drain line's route and gradient before assuming the pan or tray failed.
- Converted heritage buildings often force drain lines around original beams or walls, which can leave a low point that only overflows under load.
- Ask whether the full drain route was traced through the ceiling void before approving tray replacement.
Related reading
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