How do I know when my carpet needs cleaning?
If you can't remember what color it used to be, it may be time. Seriously though, ALL carpet manufacturers recommend cleaning your carpet every 6 to 18 months and they require you to clean it at least every 18 months - 24 months. If you have kids, you may want to clean more often.
Although children are wondrous beings with a special gift of bringing joy into your life, they also bring with them something else - kid crud. Crud that can damage the fibers and shorten your carpet's life. Believe us, it's easier (and more socially acceptable) to get rid of the crud.