You might want to clean the graffiti coatings and make your place look neat. If you are not satisfied with your cleaning, then you may apply the cleaning agent for various rounds until you clear off the graffiti coatings completely. As you are using very harsh chemicals to clean the graffiti coatings, always use safety glasses to protect your eyes. It is always better to go by circular motions if you want to remove the paint completely from the equipment.All of us want our place and equipments to be clean including our walls. Baking soda is good in cleaning and of course less aggressive on the equipment. You might not be happy to see that some one had spoilt your equipments.
It is of course frustrating to see your playground equipments with graffiti coatings. Try different strokes on the affected area and finally you must use the washer nozzle hub motor to remove the graffiti coatings completely. Select a portion of the equipment and apply a little solvent to the affected area or the area with graffiti coatings.
So, it is always better to be cautious while dealing with cleansing solvents. With the safety glasses, you can pressure wash the equipment. It does not look good if the walls or equipments are with graffiti coatings