During a hydrostatic test, how much can the pressure vary?

Prepare for the GWWI Water Distribution Test. Utilize flashcards and multiple choice questions, complete with hints and explanations. Ace your exam!

During a hydrostatic test, a pressure variation of ±5 PSI is typically permitted to account for fluctuations that may arise from ambient conditions, equipment calibration, and other factors. Hydrostatic testing is performed to ensure the integrity and safety of the water distribution system by subjecting it to higher pressure levels than it would normally experience in service.

Allowing for a variation of ±5 PSI provides a balance between ensuring that the test is rigorous enough to identify leaks or weaknesses in the system while also accommodating normal variances that could occur during the testing process. This range helps ensure that systems can safely handle operational pressure changes without failing, while still adhering to industry standards and practices in maintaining water distribution infrastructure.

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