and cause stains. this is why it's important to vacuum once per week to prevent many of these stains from popping up. by vacuuming once per week, you won't have to do a deep cleaning as often.
check the bleed of the carpet: some carpets bleed more easily than others. this means that the carpet is sensitive to cleaners and will lose its color and leave a permanent stain where the color has been lost. in order to be sure that the cleaning products you use won't cause this problem, you will want to test cleaners in an area of the carpet where it won't be seen, such as in the 