A station has its own operating needs
Ask how the proposed station dispenses water, what supplies it carries and how fresh and used water are managed. Do not assume it connects to a mains supply or provides heated water. The equipment description should match the actual proposed model.
Discuss the number of people and the pattern of use. A short break when everyone washes at once is different from occasional use across a day. Soap, drying supplies and replenishment arrangements matter as well as the presence of a sink.
Place it where washing is convenient
A station near the restroom exit can make the next step easy without obstructing a door or queue. Keep a stable approach around it and consider how people carrying tools or accompanying children will use the area. Tell us about any access needs.
For a public gathering, distinguish guest washing from any separate requirements for food handling. A general event sink should not be assumed to satisfy every vendor or health requirement. The organiser must confirm the appropriate arrangements with the responsible authority.
Include it in ongoing care
A full station at delivery is only the beginning of the plan. Agree who checks supplies between scheduled visits and how a low-water or equipment concern should be reported. Do not improvise a disposal route for used water.
Add handwashing to the initial quote request so the toilet and washing layout can be discussed together. If you already have a suitable fixed sink, explain its location and whether it remains available throughout the hours people need it.