Short answer: A spray hose works only when its full route, recoil, splash zone, floor falls, drainage and drying method are planned. Reach alone does not make a kitchen washable.
Staff drag a hose across food areas or water ponds away from the gully. The common misconception is that adding a spray hose makes a kitchen washable. This article turns that assumption into specific checks that can be recorded on the drawing, survey or commissioning sheet.
Model-specific rule: Wet cleaning increases slip and electrical risks; the method must suit the floor, equipment and risk assessment. Where gas, electricity, refrigeration, guarded components, hot oil, pressure or safety controls are involved, use the appropriately competent engineer and never bypass a safety device.
Map the hose arc
The hose must reach the furthest cleaning point without crossing food preparation, wrapping around hot equipment or lying across an escape route.
- Plot the furthest point and obstacles.
- Provide controlled recoil or storage.
- Keep the hose off clean food-contact areas.
Make water travel to drainage
Local low spots, thresholds and equipment feet can hold water even when the general floor arrow looks correct. Test the final floor with equipment in place.
- Record high and low points.
- Check door thresholds and plinth junctions.
- Run water from realistic cleaning positions.
Protect splash-sensitive equipment
Refrigeration air inlets, control panels, sockets and open bases may sit inside the spray path. Cleaning design must respect the appliance’s approved method.
- Mark no-spray zones.
- Separate electrics and air intakes from splash.
- Use dry or controlled methods where required.
What the site evidence may show
| Observation | Hidden issue | Next check |
|---|---|---|
| Hose reaches the wall | Route crosses hot line | Redesign storage and access |
| Drawing shows a fall | Finished floor ponds | Water-test the completed area |
| Stainless surface is present | Appliance is not jet-cleanable | Follow exact cleaning instructions |
A practical verification sequence
- Confirm the exact duty and model. Record what the appliance or space must achieve at peak service and use the current model-specific installation information.
- Draw the complete interface. Include moving parts, service/removal access, connections, adjacent equipment and the real operator or trolley position.
- Measure under a representative condition. Static, empty or isolated tests can hide the issue. Record the operating state, value, unit and test point.
- Correct and prove. Repeat the same test after any change and retain the evidence with commissioning or O&M information.
Checks to record:
- Furthest point.
- hose route.
- recoil zone.
- gully location.
- high/low spots.
- splash-sensitive equipment.
- drying time..
Plan the hose arc, recoil/storage, cross-contamination route, splash zone, floor gradients, drainage and drying sequence together. The result should be a measurable decision rather than a generic note such as “allow sufficient space” or “services by others”.
Common mistakes to avoid
- Buying a longer hose instead of fixing the route.
- Assuming one floor-fall arrow proves drainage.
- Spraying into condenser or electrical openings.
- Leaving wet floors during active service.
Frequently asked questions
Should the whole kitchen be hose-down?
Only where finishes, appliances, electrics, drainage and the risk assessment support that method.
When should floor falls be tested?
Before handover and preferably before final acceptance, with equipment and thresholds in their finished positions.
What is the main slip-control point?
Prevent uncontrolled contamination and keep people off wet areas until the floor is safely dry.
Related Kitchen Install Guide reading
- Where Should Floor Gullies Go in a Commercial Kitchen?
- Electrical Services Through Wet and Hot Kitchen Areas
- What Makes a Stainless-Steel Joint Hygienic?
Record the installation detail before handover
Use the KIG 318 Commercial Kitchen Installation Checklist to record equipment interfaces, measured conditions, outstanding actions and acceptance evidence.
Sources and further guidance
- Regulation (EC) No 852/2004, Annex II
- GOV.UK: Starting a food business
- HSE: Slips and trips in catering
Last reviewed: 14 August 2026. This article provides general commercial-kitchen design and installation information. It does not replace the exact manufacturer instructions, a site-specific design, risk assessment or work by competent specialists. Stop use and obtain competent help where equipment or services may be unsafe.