Types of Water Cooler/ Dispenser and Options
A water cooler or water dispenser is a device that cools and dispenses water. They are generally broken up in two categories: bottleless and bottled water coolers. Bottleless water coolers are hooked up to a water supply, while bottled water coolers require delivery (or self-pick-up) of water in large bottles from Wall-mounted
The wall-mounted type is connected to the building’s water supply for a continuous supply of water and electricity to run a refrigeration unit to cool the incoming water, and to the building’s waste disposal system to dispose of unused water.
In the standard wall-mounted cooler, also commonly referred to as a water fountain or drinking fountain, a small tank in the machine holds chilled water so the user does not have to wait for chilled water. Water is delivered by turning or pressing a button on a spring-loaded valve located on the top of the unit, that turns off the water when released. Some devices also offer a large button on the front or side. Water is delivered in a stream that arches up, allowing the user to drink directly from the top of the stream of water. These devices usually dispense water directly from the municipal water supply, without treatment or filtering.
The most common water dispensers are the ones that have the bottle on the top. The bottom-load water dispenser eliminates the need to lift the heavy water bottles. Instead the water bottle is placed at the bottom of the dispenser
There are also smaller versions of the water dispensers where the dispenser can be placed directly on top of a table for serving a smaller number of people.
Water dispensers can be directly connected to the in-house water source for continuous dispensing of hot and cold drinking water.
A freestanding design generally involves bottles of water placed spout-down into the dispensing machine.
Tabletop or kitchen worktop versions are available which utilise readily available five-liter water bottles from supermarkets. These coolers use air pumps to push the water into the cooling chamber and Peltier devices to chill the water. A new development within the water cooler market is the advent of countertop appliances which are connected to the mains and provide an instant supply of not only chilled water but also boiling hot and hot water.
Direct piping water coolers use tap water and therefore do not need bottles. Usually some method of purification is used. Filtration methods include reverse osmosis, ion exchange and activated carbon.