The oily sheen on your water is likely caused by either hydrogen sulfide or iron bacteria. To determine the culprit, simply stir the water with a stick. If the oil doesn't break up, it's most likely hydrogen sulfide, a naturally occurring gas.
However, if the oily sheen appears in your municipal water supply, it might be due to cationic polymers, used in the filtration process. These chemicals can create a greasy feeling in your water if too much is used.
Here are some other potential causes of oily water:
- Iron oxide films are naturally occurring and can contribute to an oily sheen.
- Biofilms can form in aquariums due to insufficient filtration or an overly small tank.
- Micellar water, a popular beauty product, is designed to remove oil and dirt from your skin. It's not intended for drinking and should not be used in your water supply.
If you're experiencing oily water, it's important to contact your local water utility to investigate the cause. They can test your water for contaminants and recommend solutions to remove them.
Remember, it's always best to consult a professional plumber or water treatment expert for any concerns about your water quality.
