Keep the spray valve spritzing at full power with the right spray valve parts. It’s easily the littlest things in the commercial kitchen that cause the biggest problems, and when a pre-rinse stops pumping out water, chances are the spray valve is the culprit. They can get clogged, come apart, and just degrade over time. Piecing one back together isn’t hard, and having a few spray valves parts ready can get that valve up and running again in no time. Buy the screws and secure the stems you need before the spray valve becomes a problem.