Section 903.3.5.2 (IBC 2012)/Section 403.3.3 (IBC 2015) requires and automatic secondary water supply. I am an FPE and I work in a jurisdiction (Hawaii) that has never required this secondary water supply due to local code amendments to IBC. Recent code revisions now require this secondary supply, and I now have my first project subject to this requirement. I'm planning to meet this requirement as as follows;
Am I on the right track here? Is this primary/secondary supply arrangement viable? Does anyone foresee any code or other issues that may be a problem with this arrangement?
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