Pw=2.25 Bar Ps=3.05-2.25=0.80 Bar Pc≥(Pw+Ps)/1.4=(2.25+0.8)/1.4=2.178Bar Pc≥(Ps/0.4)=0.8/0.4=2Bar According to the pressure classin AWWA C950, Pc=3.45 Bar
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