OK To follow up with my mistaken theology on this issue Tom at AFSA has straightened me out.
When you calculate using the form A.5.19.3.4(2) from NFAP #20 you are adding the Pitot pressure in so the pressure you calculate is actually what you need at the pump discharge. In my case it is approximately 70 psi and I have 120 psi available. Thanks, Greg McGahan Living Water Fire Protection, LLC 1160 McKenzie Road Cantonment, FL 32533 850-937-1850 Fax: 850-937-1852 _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum
