Yes, Aruba’s tap water is safe to drink. It’s some of the cleanest tap water in the Caribbean, produced entirely from seawater through industrial desalination and held to World Health Organization standards. You can drink it straight from the faucet at your hotel, use it to brush your teeth, and make ice with it without worry.
How Aruba Produces Its Tap Water
Aruba is a desert island with almost no freshwater sources, so every drop of tap water starts as seawater. The island’s sole water utility, WEB Aruba, runs a seawater reverse osmosis (SWRO) system that forces ocean water through membranes at high pressure, stripping out salt, bacteria, and contaminants. This is the same core technology used in parts of Israel, Singapore, and Saudi Arabia.
Because reverse osmosis removes nearly everything from the water, including beneficial minerals, the purified water goes through a re-mineralization step. WEB uses a pressurized limestone system to add calcium and other minerals back in, which also stabilizes the water so it doesn’t corrode pipes on its way to your tap. The result is water that tastes clean and slightly mineral, though noticeably different from most mainland tap water.
Testing and Compliance
WEB Aruba tests its water at locations across the island on a monthly basis, checking against WHO guidelines for drinking water. The utility states that its water complies with those guidelines “in every way.” Every newly installed pipeline is disinfected with chlorine and tested for both biological and chemical contamination before it goes into service. Existing pipelines are periodically flushed to prevent stagnation.
What About the Pipes?
The distribution network uses a mix of copper pipes (for smaller 1- and 2-inch lines) and ductile cast iron pipes (for larger mains). The iron pipes are cement-lined internally and coated externally with bitumen and polyethylene tape to prevent corrosion. WEB is gradually replacing all its older copper pipes with high-density polyethylene (HDPE), a modern material that resists corrosion and doesn’t leach metals into the water.
This matters because even perfectly purified water can pick up contaminants from aging infrastructure. Aruba’s ongoing pipe replacement program and regular flushing schedule reduce that risk significantly. In most tourist areas and newer developments, the plumbing is in good condition.
How It Tastes
The most common complaint about Aruba’s tap water isn’t safety, it’s taste. Desalinated water has a flat, slightly mineral quality that some people find off-putting compared to what they’re used to at home. A faint chlorine taste is also possible, since chlorine is used as a disinfectant in the distribution system. If the taste bothers you, a simple carbon filter pitcher or a squeeze of lemon will take care of it. But there’s no health reason to avoid it.
Tap Water vs. Bottled Water
Many visitors default to bottled water out of habit or caution, but in Aruba this is unnecessary. The tap water goes through a more rigorous purification process than most bottled water brands, which often source from municipal supplies anyway. Buying bottled water on the island also generates significant plastic waste in a place with limited landfill space. Bringing a reusable bottle and filling it from the tap is both safe and practical.
That said, if you’re staying in a very old building or a rural property with its own cistern or storage tank, the water quality depends on how well that tank is maintained. Resort hotels, restaurants, and most rental properties connect directly to the public supply and are perfectly fine.
Sensitive Groups
Aruba’s desalinated tap water is low in sodium compared to many natural water sources, but specific sodium levels can vary. For preparing infant formula, guidelines typically recommend water with no more than 20 milligrams of sodium per liter. If you’re traveling with a baby and want to be certain, check with your accommodation or use a low-sodium bottled water labeled as suitable for infants. For adults with kidney disease or those on strict low-sodium diets, the tap water’s mineral content is unlikely to be a concern given that desalination removes the vast majority of dissolved salts, but your doctor can advise based on your individual limits.
For most travelers, including children, pregnant women, and older adults, Aruba’s tap water is perfectly safe to drink without any additional treatment.