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When you notice a slightly oily film on your water, it can be alarming, especially if you rely on your tap for drinking, cooking, or washing. While it may seem like an unusual issue, this oily residue is actually more common than you think and often indicates underlying water quality problems. If you’ve observed this in your home, it’s essential to understand the cause and how to address it effectively. NuvoH2O is here to help! Learn more and get in touch with us to find home water treatment today.

Mineral Buildup and Hard Water


One of the most common reasons for an oily film on water is the presence of hard water. Hard water contains high levels of dissolved minerals, particularly calcium and magnesium, which can leave behind a greasy or filmy residue when they react with soaps or detergents. If hard water is the culprit, installing a salt-free water softener can significantly reduce the mineral content in your water, preventing the buildup of that oily layer on your taps, dishes, and laundry.

Organic Contaminants


Another potential cause of oily water is the presence of organic compounds. These compounds may come from decaying plants, algae, or other natural sources and can give water a slimy or greasy feel. Organic matter can slip through untreated water systems, making proper filtration a necessity. A home water filtration system designed to remove organic compounds can greatly improve water clarity and eliminate that slippery sensation.

Petroleum-Based Contamination


While less common in residential areas, petroleum-based contamination can occur, especially if your water source is near industrial zones. These contaminants leave a shiny, oil-like film on the surface of the water. This type of contamination requires immediate attention, and a comprehensive residential water treatment system can help filter out harmful chemicals, restoring your water to a safe, clean state.

Pipe Corrosion


Older plumbing systems made of metal can corrode over time, releasing tiny particles of oil-like substances into your water. This corrosion often manifests as a rainbow-colored film on the water’s surface. Installing a water filtration system that targets sediment and rust can help eliminate these particles, giving you cleaner, safer water.


If you’ve noticed a slightly oily film on your water, it’s a sign that something deeper is happening with your water quality. From hard water and organic contaminants to potential industrial pollution or pipe corrosion, there are various causes that need to be addressed. A home water filtration system from NuvoH2O can be the solution to ensure your water is safe and clean, giving you peace of mind. Reach out to our team to get started today!