You have to make sure that the surface is very clean. If you leave dirt on the surface or even a layer of soap, you will find that the paint or stain is not sticking properly.
In the end, you end up with insufficient protection and the need to get back to work sooner than you intended.
Washing is probably the best option for cleaning exterior surfaces. However, be careful with the disc motor. If used incorrectly, this material can damage the material underneath, especially wood or composite materials.
You can also hire deck cleaning companies in Joplin for professional services.
You need to turn the nozzle at a right angle so that water doesn't get into the nipple. Additionally, you must maintain the correct pressure at a slow enough speed to clean the surface without causing damage.
After cleaning, you need to wait for the surface to dry completely. This can take a day or two depending on temperature and humidity.
Of course, surface preparation for painting and staining can take a little longer than the actual coating. Take your time as this is very important for a quality long term project.
You should also take the time to protect the space around the railing or deck. After all, you don't want to paint your lawn, flowers, shrubs or other landscaping. And you definitely don't want to paint your neighbor's property. This can cause a whole new headache.