A guide to cleaning water dispensers

How to Clean a Water Cooler

Water dispensers and water coolers are essential items for many restaurants, businesses, and office spaces. Though they provide ready access to fresh water, they will wear out after several years if not properly maintained. "It doesn't matter whether it's an oven or a water dispenser." Jim Van Vleet, representative at PMR said, "Lack of maintaining [equipment] properly is the number one problem that I see in commercial kitchens." In this article, we will outline the basic steps to caring for and cleaning your commercial water dispenser, so read on to find out how to disinfect a water cooler.

Tools You’ll Need to Clean a Water Cooler

Make sure you have the following tools and supplies before you start cleaning your water dispenser:

Steps for Deep Cleaning a Water Dispenser

Step 1: Read Your Manual

Water coolers come in all sorts of different styles. While most water coolers are easy to clean, some machines include ice makers that require intricate part removal and multiple cleaning cycles. Take time to review the cleaning section of your manual before you start.

Step 2: Turn Off the Water Supply

  • Locate the supply valve, usually located behind or beneath the dispenser. For mounted models, it may be hidden behind an access panel. Bottled water coolers simply need to be emptied.
  • Identify the shut off mechanism. Depending on the models, this could be a lever, button, or switch on the machine or supply valve. Shut it off or put it in “CLEAN” mode if available.
  • Secure the area by using a towel or bucket to catch splashes when you remove parts for cleaning. You may need to pull the unit away from its location to access hidden parts.

Step 3: Remove & Clean Dispenser Parts

The following parts commonly found on water dispensers will require regular cleaning:

  • Drip tray and drain system: Many water dispensers come with removable drip trays that can be easily cleaned. You'll likely find scale buildup here, which can be removed with descaling solution.
  • Water dispenser nozzle: The dispenser nozzle should be easy to remove; many models can be unscrewed. Some dispensers have both ice and water nozzles. After removing them, use your cleaning solution to clean the nozzles and the exposed piping.
  • Buttons or touchless sensors: Wipe down these surfaces with a cloth and dry them to remove grime and residue.

Optional steps for models with ice bins:

  • Air filter: If your water dispenser has an ice maker, it will likely have an air filter for the condenser. Over time, these become clogged with dust, which slows down ice production. Most filters should be easy to remove with hand tools.
  • Ice bin: Remove any parts blocking access to the ice bin, empty remaining ice, and clean the inside.
  • Ice mechanics: Internal parts, such as ice sweeps, extruding heads, or rotors, may need removed and descaled.
  • Condenser: While you have access to it, make sure your condenser is free of dust.

Step 4: Flush the Water Lines

Water lines carry water into and out of your dispenser; flushing them helps keep them clean. Jeff Biel, Scotsman Vice President of Marketing and Product Development, reminds customers that ice is indeed food, which is why proper sanitation using food-grade cleaners—not household products—is critical.

  • Use a descaling or cleaning solution to rinse out the input and drain tubes. Your dispenser manual should have specific instructions for the type and amount of solution to use.
  • Pour sanitizing fluid into the machine and operate it to ensure it runs through the entire system.
  • Depending on the sanitizer you use, you may need to flush the system again with clean water to rinse it out.
  • Inspect your lines. You may need to purchase a new water supply line if your old one is worn out.

Step 5: Replace the Water Filter

Before finding the right filter for your dispenser, test your water to find out what minerals are in it. "The water in Nashville is going to be different than the water in Knoxville, and that's going to be different than the water in Huntsville, Alabama," Jim Van Vleet, an equipment representative from PMR said. You can easily find water testing kits online. The test results can help you find the proper dispenser water filter. We recommend changing this filter about every 6 months, depending on output. This step only applies to dispensers connected to your water line, not standalone water coolers.

Step 6: Perform a Test Run

After reassembling everything, test your water dispenser. Look for leaks or slow water flow, which could mean you installed parts incorrectly, then test for odd flavors or discoloration. If all your inspections pass, your dispenser is ready for service.

Understanding the Parts of a Water Cooler

Water coolers are relatively simple machines, but some dispensers have more complex parts that must be identified during cleaning. Each dispenser will have slightly different parts based on its design.

Most water dispensers include the following items:

parts to cleaning a water dispenser

Dispensers with ice machines will include items such as extruding heads, where the ice forms, and rotors, which are screws that move ice into the chute. All commercial ice machines also include a compressor, condenser tubing, and separate water lines. Contact a qualified technician if you need ice maker service.

When to Clean Your Water Cooler

How do you know when it's time to clean your water cooler? Maintaining a regular cleaning schedule is considered best practice. Dispensers can be easily overlooked, but since they’re used daily, keeping them clean is essential. Some filters need basic cleaning more frequently, such as every 3 months, and a deep cleaning every 6 to 12 months.

Other indicators that your water cooler needs attention include:

  • Slower water flow
  • Visible scale buildup
  • Odd smell or taste in dispensed water

The Importance of Cleaning & Maintaining Your Water Cooler

Regularly sanitizing your dispenser’s external parts will help keep it clean. When cleaning removable items like nozzles and drip trays, ensure you properly sanitize or disinfect items that come in contact with the dispensed water.

Not only is cleaning important to maintain a safe drinking water source, but it also extends the life of your machine, saving money. Preventative care is essential. Allowing scale and residue to build up will force water and ice dispensers to work harder, ultimately causing parts to wear out faster.

Water Dispenser FAQs Answered

Why is it important to clean my water cooler?

Water can be one of the most harmful substances for your kitchen equipment. A neglected water dispenser can become blocked and can damage nearby equipment if it starts leaking.

Can I use regular cleaning products to clean my water cooler?

Refer to your owner's manual for which chemicals are safe for your model. Generally, avoid harsh chemicals like bleach or ammonia. Dish soap usually is the easiest cleaning product for the initial cleaning, but it won't completely disinfect your dispenser. You can also use a solution specifically designed to descale ice machines.

How do I clean the exterior of my water cooler?

Use a damp cloth or disinfectant towel to clean the exterior. Pay particular attention to the areas where water is dispensed.

What should I do if my water cooler smells or has a bad taste?

A bad smell or taste usually signifies your cooler is contaminated with mold or other foreign substances. Clean and disinfect it immediately to ensure the water is safe to drink.

Can I clean my water cooler without disassembling it?

While you can clean the outside of your water cooler without disassembling it, you'll need to disassemble it for the most thorough clean. Fortunately, you should only have to do this about once every 6 to 12 months.

Is it safe to clean my water cooler with vinegar?

Vinegar is safe for cleaning foodservice appliances. Its mild acidity effectively removes hard water scale without damaging surfaces. Vinegar also has antimicrobial properties that kill most common pathogens.1 Most other natural cleaners are also safe; just make sure they're gentle on materials such as plastic, rubber, and stainless steel.

How do I clean a hot water dispenser?

Hot water dispensers should be cleaned in the same way regular water dispensers are cleaned. be sure to turn off the heater before draining any water. You'll also need to descale it more often than a regular dispenser. Minerals bond together at 180 degrees F. "So if you're dispensing 190 degree water, there's going to be more minerals that are going to be bonding together inside the tank." Van Vleet said.

Recommended Cleaning Products From KaTom for Maintaining Your Water Cooler

Refrences

  1. Why is Vinegar so Good at Cleaning. BBC. Accessed April 2025.