Dishwasher water spotting at a Waikiki hotel
Dishwasher water spotting was marking dishes, and especially glassware, at a Waikiki hotel, while scale on the dishwasher’s internal surfaces threatened heat-transfer efficiency. The hotel wanted a measurable trend rather than a one-off clean. One HydroFLOW® S38 was fitted to the three-quarter inch galvanised pump line between the filter heater and the dishwasher, with inspections over roughly six months. A noticeable limescale reduction was recorded within 60 days. Later inspections showed less visible scale on the monitored surfaces, spotting on dishes and glassware fell significantly, and the field conclusion reported improved dishwasher performance as the scale reduced.
The Challenge
- Dishwasher water spotting was affecting dishes and particularly glassware
- Scale accumulated across the dishwasher’s internal surfaces
- Build-up risked reducing the machine’s heat-transfer efficiency
- The hotel wanted a measurable reduction rather than a one-off clean
- Inspections needed to run long enough to show a trend
The Solution
- Unit installed: one HydroFLOW® S38
- Installation point: pump line between the filter heater and the dishwasher
- Pipe size: three-quarter inch galvanised
- Monitoring period: approximately six months of follow-up inspections
Dishwasher water spotting was tracked as the visible measure of scale inside the machine. The galvanised pump line was the only practical fitting point in a busy hotel kitchen, and the unit went on without interrupting service. Follow-up inspections then recorded limescale on the monitored surfaces, and spotting on dishes and glassware, across about six months.
