What method helps protect the platform of upholstery from watermarks during cleaning?

Using the method of evenly damping the surface is effective in protecting the platform of upholstery from watermarks during cleaning. This technique helps distribute moisture evenly across the fabric, reducing the risk of excess water pooling in specific areas, which can lead to watermarking. Watermarks typically occur when excess moisture leads to uneven drying or when cleaning solutions are not thoroughly rinsed, leaving residues that can stain the fabric.

In contrast, the other methods do not effectively mitigate the risk of watermarks. Dry brushing may help in surface-level cleaning but does not involve moisture management. Spraying water directly could introduce excess moisture to certain areas, increasing the likelihood of watermarks forming. Using a dryer would not prevent watermarking during the cleaning process, as it is unrelated to how moisture is applied to the upholstery. Instead, evenly dampening the surface ensures a controlled and uniform level of moisture, which is key in maintaining the integrity of the fabric without leaving unsightly marks.