Re: wall prep after wallpaper removal
The airless sprayer you have, I assume is for paint? That is not what is used to texture the wall, a texture gun is needed. You can purchase a manual one and get reasonable results or you can rent one for about the same money and get professional results.
There are two products you can use to texture the walls with. The first is actual wall texture mix which is a dry powder that you mix with water. The second is regular drywall topping compound. I recommend the latter, it takes slightly longer to dry, but it is more forgiving to the first time user.
Dry mix is mixed with clean water to the consistency of pancake batter. Topping compound is thinned with clean water to the same consistency.
Texture guns vary vary in their control of spatter size depending on what type of gun you have. The all use different orifice sizes, it's how you adjust them that's different.
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