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George LeonardAug 18, 2025
What to do if Graco D200 Industrial Equipment pump won't prime?
- RRebecca GonzalezAug 18, 2025
If your Graco Industrial Equipment pump isn't priming or is pumping air, the issue might be due to a closed air valve or a clogged air line, in which case you should open or clear it. Another potential cause is insufficient air pressure; try increasing it. The hand valve might be closed, clogged, dirty, worn, or damaged. In this case, you should open, clear, clean, or service it. Also, a worn or damaged piston can cause this problem, so consider replacing it.