If you're experiencing clear oil leaking down your living room blind without any apparent source, it can be puzzling. While it's difficult to provide a definitive answer without more information, there are a few potential explanations you can consider:
Condensation: Sometimes, condensation can occur within the walls or ceiling of a building. This can lead to moisture accumulating and eventually dripping down. If there are pipes or ventilation systems running near or behind the blind, condensation could be forming and carrying tiny droplets of oil or other substances with it. Inspecting the area for signs of moisture or condensation-related issues might be helpful.
Household products or appliances: Occasionally, certain household products or appliances can release small amounts of oil or other substances that can travel through the air and settle on nearby surfaces. Check if there are any appliances or products in the vicinity of the blind that could be responsible for the oil residue.
Nearby construction or renovations: If there is any ongoing construction or renovations in your building or nearby, it's possible that the oil is originating from work being done in the vicinity. Dust, debris, or substances used in construction processes can travel through vents, pipes, or other openings and find their way onto your blind.
Environmental factors: It's worth considering if there are any external factors contributing to the issue. For example, if you live in an area with high humidity, it could potentially affect the blinds. Similarly, if there are nearby sources of pollution or industrial activities, it might impact the air quality and result in the oil residue.
Given the recurrent nature of the issue, it may be worthwhile to consult with a professional, such as a building inspector or a plumber, who can examine your living room and investigate the possible sources of the oil leakage. They can provide a more accurate assessment based on a physical inspection of the area.