I can provide some general guidance.
If you are planning to clean a carpet, vacuuming beforehand is usually recommended for the best results. Here's why:
Removing loose dirt and debris: Vacuuming helps to remove surface-level dirt, dust, and debris from the carpet. This step is essential before deep cleaning, as it ensures that the cleaner can penetrate deeper into the carpet fibers.
Enhanced cleaning efficiency: By vacuuming first, you make the subsequent cleaning process more efficient. The cleaning solution or equipment can focus on lifting stains, spills, and ingrained dirt rather than dealing with superficial debris.
Preventing damage to cleaning equipment: If you skip vacuuming, larger debris or dirt particles could get trapped in the cleaning equipment or clog the cleaning solutions, reducing their effectiveness and possibly damaging the equipment.
However, if your carpet is heavily soiled or stained, you may need to consider pre-treating those specific areas before vacuuming to loosen the dirt and stains. There are specialized carpet cleaning solutions designed for pre-treatment.
Ultimately, the need to vacuum beforehand depends on the condition of your carpet and the cleaning method you plan to use. In general, vacuuming is a good practice to enhance the overall effectiveness of carpet cleaning.