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Diaphragm-Pump
Pros: Will handle most paints without thinning and spray large areas efficiently; easier to maintain and less expensive than piston-pump sprayers (quality machines start at $250)
Cons: Overspray (known as low “transfer efficiency”)—sometimes less than half the paint ends up on the work; not good for interiors.
Best for: Decks, siding, or house painting.
Shown: Campbell Hausfeld airless paint sprayer; about $350; amazon.com -
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This Old House To Go









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