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http://www.bassani.com/faq/ WebB = Test Header Supply Pipe Œ The minimum pipe size is indicated on Table 5.25 of NFPA 20 (2003 edition). Unless sized hydraulically, if the length of pipe between the test header and the connection to the discharge side of the pump exceeds 15 feet the next larger nominal pipe size must be used (NFPA 20, Section 5.19.3.4). michel publishing country diary
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