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NFPA 22 - 14.4.10 Suction Tanks Pipe Arrangement

Question asked by dbenton on Jul 7, 2016
Latest reply on Aug 4, 2016 by dbenton

The cylindrical 200,000 gallon fire water storage tank is 34' diameter and 34' tall. The flat bottom is on a concrete pad. The over-the-top fill pipe is located at 14' radius near the east side of the tank.  The vortex plate for the fire pumps suction pipe is located 6" above the tank bottom at 14' radius near the east side of the tank (34' below the fill line).  Does this pipe arrangement violate requirement, " Pipes for the automatic filling of suction tanks shall discharge into the opposite half of the tanks from the pump suction pipe."?  What is the intent of