Dark dirt marks around the edges of your carpet are caused by an issue called filtration soiling.
Dirt around carpet edge.
But you may have noticed that your carpet gets especially dirty sometimes even black along the walls and corners of the room.
There are several reasons filtration soiling occurs on the carpet around the perimeter of the room.
This soiling is called filtration soiling because it comes from air passing through the carpet as it is attempting to get through the crack between the carpet and the baseboard or under a closed door.
Why does it happen.
Filtration soiling occurs as a result of air being forced into the room or space at a higher rate than it can escape from the same area via the ventilation system.
Forced air furnaces push air dust and dirt contaminates through the house especially if the filter is dirty.
As air gets sucked through gaps in the floorboards and baseboards tiny dust particles can get lodged in the carpeting around the edges of the room and create noticeable black lines.
Sometimes called filtration lines they also occur along the bottom edges of closed doors and they can be difficult to remove.
If you have noticed your carpet turning black or gray along the walls or doors you may have a problem called filtration spoiling.
Air moves across the floor and as a result dirt dust and contaminants accumulate near the wall.
Instead there are tack strips to hold the carpet in place.
February 7 2017 you understand why carpet accumulates dirt and grime in the middle of the room you track in mud and dirt from outside on your shoes.
Cleaning your carpet by the skirting boards also called baseboards is fairly easy if you have a crevice attachment for your vacuum cleaner and a scrub brush.
Dirty carpet edges can be really annoying and may even trigger an allergy flare up because of trapped dust.
This is how keech clean removes the black lines from around the edge of your carpet.
You may need to use detergent for more persistent stains.
As the air passes through the edge of the carpet pile this microscopic soiling is deposited there hence the term filtration soiling.
Why is the carpet so dirty around the edges.
To clean up these stains you need water and vigorous scrubbing.
What causes black lines along the edge of your carpet.
Filtration soiling occurs when there is an imbalance in the air ventilation of the room.