Water dispenser maintenance and cleaning: when and how

A water dispenser is one of the most used appliances at home and in the office, yet its maintenance is often forgotten. If the reservoir, lines and taps that the water passes through are not cleaned regularly, the taste of the water can change and the appliance's life can be shortened. In this guide we explain how and how often to maintain both bottle-fed dispensers and mains-connected filtered dispensers.

Why is regular maintenance necessary?

• Hygiene: Reservoirs and tap outlets can develop a thin layer known as biofilm over time.
• Taste and odour: In a neglected dispenser, water can pick up a plastic or stale taste.
• Energy efficiency: A dispenser with dusty rear grilles uses more energy to cool.
• Appliance life: Scale and sediment reduce the performance of heaters and valves.

Maintenance schedule

| Frequency | Task | |---|---| | At every bottle change | Wipe the bottle neck and the dispenser seat | | Weekly | Empty and wash the drip tray, wipe the taps | | Monthly | Dust the exterior and the rear grille | | Every 3 months | Thorough disinfection of the reservoir and internal lines | | As recommended by the manufacturer | Filter replacement on filtered dispensers |

In busy offices and during the summer months, it is good practice to shorten the interval between deep cleans.

Bottle-fed dispenser: deep-clean steps

1. Unplug the appliance and wait at least a few hours for the hot-water tank to cool. Use the switches on the back to turn off the heater.
2. Remove the bottle and drain the reservoir through the taps or the drain plug.
3. Prepare a cleaning solution. Use a food-safe disinfectant recommended for dispensers, or add white vinegar to lukewarm water (for example, about one cup of vinegar to 4 litres of water).
4. Pour the solution into the reservoir and briefly open the taps so it reaches the lines. Leave it for the time recommended by the manufacturer; for vinegar, 10–15 minutes is usually enough.
5. Drain the solution completely.
6. Rinse 2–3 times with clean water, running water through the taps each time, until there is no smell left.
7. Wipe the seat and the probe (the part that pierces the bottle cap) with a clean cloth.
8. Fit a new bottle, switch the appliance on and pour away the first few glasses.

Mains-connected filtered dispensers

Filtered dispensers have no bottle; water comes from the mains and passes through a series of filters. The most important part of maintaining them is filter replacement.

• Sediment filter: Traps sand, rust and particles.
• Activated carbon filter: Reduces chlorine-related taste and odour.
• Membrane (reverse osmosis) and post-carbon filters: Replaced at intervals that vary by model.
• UV lamp: On models that have one, it must be replaced after a set period of use.

Filter replacement intervals depend on the model, the quality of the mains water and how much is used; always follow the manufacturer's recommendation. Filters that are not changed on time can lead to reduced flow and a change in taste.

Choosing the right spot

Placement matters as much as maintenance. Keep the dispenser 10–15 cm from the wall so the rear cooling grille can breathe, on a flat and stable floor, plugged into an earthed socket rather than an extension lead, and away from ovens, radiators and sunny windows.

What not to do

• Do not use strong chemicals such as bleach undiluted.
• Do not open the hot-water tank while the appliance is running.
• Do not splash water on the electronic components.
• Do not place the dispenser in direct sunlight or next to a heat source.

Professional maintenance

If you would rather not clean it yourself, or you manage many dispensers, you can leave periodic maintenance to specialists. With Girne Su's dispenser rental and filtration services, regular maintenance and filter replacement can be included. See our business solutions for details or request a quote.