Paint that has dried in a sprayer's hose or gun can cause clogs that make the sprayer sputter and spatter. Immediately after use, remove the tip and soak it in the appropriate solvent (water for water-based coatings, thinner for oil-based), rinse out the cup with the same solvent, then run more solvent through the lines and cups until all the paint is flushed out and the solvent runs clean.
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