1. If the umbrella surface is dirty, you can use a softer scrubbing tool dipped in clean water to scrub gently, but you can't scrub with your hands, and the cleaning frequency should not be too frequent, otherwise it will affect the sunscreen effect.

　　2. It can also be used as a cleaning fluid for the sunshade parasol. The cleaning solution only needs white vinegar and detergent. It should be noted that detergents that do not contain alkali must be selected. Prepare a disposable paper cup again. After the materials are prepared, the work will begin immediately. First, pour the detergent into the disposable paper cup, as long as the detergent reaches the bottom of the paper cup. Next is white vinegar. Pour half a cup of white vinegar into the cup. Then pour warm water of about 40 degrees into the cup. The warm water serves the white vinegar and detergent. Only with warm water can it be fully integrated and the power can be stronger. Prepare the detergent and apply the sunshade parasol with a brush dipped in detergent. When brushing, brush longitudinally along the umbrella stand, and the direction should be the same. You can't brush vertically and horizontally for a while. That would destroy the sunscreen of the sunshade parasol. In addition, the choice of detergents that do not contain alkali is also because such detergents can not only wash off the stains on the umbrella but also will not harm the sunscreen layer of the sunshade parasol. White vinegar can keep the original luster of the umbrella fabric, and with the addition of 40 degrees warm water that blends detergent and white vinegar, the effect of decontamination is very good.

　　After washing the surface of the umbrella, it should be washed with clean water. Remember, you must wash it thoroughly, otherwise, after the umbrella is dried, there will be traces of detergent on the surface, which is ugly. Then put the cleaned umbrella in the shade to dry.