Cleaning Your Prima Srl Pressure Balloon can be done with water and neutral, nonfoaming soap or detergent, provided the latter is abradant-free; the concentration of detergent in the water and the temperature should be chosen according to the type of dirt. Brushes with soft bristles are indicated. Avoid the use of solvents and/or hydrocarbons for grease stains. After thorough washing with detergent take care to rinse with water to remove all traces of detergent. Do the last rinse with 1% solution of common hypochlorite in water. Finally dry the whole surface perfectly with soft cloth.