My largest water purveyor had long had an antagonism towards fire. One day I
asked why. They said it was our use of hard suctions, with resulting drawing
down below design pressure at large fires. Everything in water design and
maintenance is predicted on that 20 psi minimum. After denials that
Travis,
Permit me to endorse the comment made by Mike Morey. Your AHJ is over
reaching, and under thinking the issue.
When reading through the annex material Mike referenced in the 2019
handbook, the phrase that "To create a flow at least as large as the
system demand, an opening needs to
