I also wrote to CVT customer support and they replied with this:
- Warm water and dawn soap with a soft bristled brush.
- (1 cup of Lysol all-purpose cleaner to 1 gallon of hot water) with warm water and a soft to medium brush to clean the fabric.
-Brush the affected area with a soft bristled brush to get and loose dirt off.
-Wash the canvas using a sponge and the bristled brush with the Lysol mixture
-Rinse the tent off with a solution (1 cup lemon juice, 1 cup sea salt, 1 gallon hot water).
-Once the lysol solution has been properly washed out, let the tent air dry for several hours in order to prevent future mold from forming. Please make sure it is completely dry
-Soap or wax your zippers
Zipper-Ease | Zipperstop