Chemical and soap dispensing equipment must be connected to which type of supply?

The correct answer is an independent supply with a stop because this type of supply ensures that chemical and soap dispensing equipment has its own dedicated water source, which is critical for maintaining safety and preventing contamination. When connected to an independent supply, the water can be easily controlled and managed, reducing the risk of chemicals backflowing into the main water system. Additionally, having a stop allows for quick isolation of the equipment for maintenance or emergencies without disrupting the entire water supply to a facility. This setup is particularly important in environments like commercial kitchens or laundries, where a reliable and safe water source is essential for both sanitation and operational efficiency.

In contrast, public water supply or shared water supplies may introduce the risk of cross-contamination and may not have the necessary controls to isolate specific equipment, and groundwater supply might not meet health and safety standards for dispensing chemicals.