Why commercial bar counters fail at the drain, not the weld

Welds are rarely the failure

A correctly passivated TIG weld in SUS304 does not fail in a bar. What fails is the junction between the counter and the floor, the drain connection, and the sealant that was used to hide a gap instead of closing it.

The floor junction

A sealed plinth with a removable kick plate can be cleaned. A bead of silicone against a screed cannot, and it will fail within two years of daily mopping. This is a design decision made at drawing stage, not on site.

Drain connections

Flexible waste connections behind a sealed panel are the most common source of odour and leak call-outs. Specify a rigid connection with an accessible trap, and put the access panel where a person can actually reach it.

Access panels and condensate

If the condenser cannot be reached, it will not be cleaned. If condensate cannot be seen, it will be discovered as a stain on the ceiling below. Both are drawing-stage items and both cost less than the call-out.