description_raw: Revision #3&nbsp;- Per Fire marshal need to add 3 heads over walkway area on roof deck, filing fee only per Tom Sabelhaus 7/17/2018. Revision #2- Revision to the project. Owner added area at penthouse fl. added sprinklers new drawing / calc. 14 sprinklers added, filing fee only per Tom Sabelhaus 5/15/2018. Revision #1&nbsp;- Redesign of Atrium system only. FM wanted us to change heads from 25.2K ssp to 16.8K dry Pendent. Design only per Tom Sabelhaus 3/12/2018. New Sprinkler System for new building 3 automatic dry standpipes, 2 wet standpipes, 1 wet sprinkler riser, 4 dry systems, 2 pre-action systems 2 nitrogen gens, &amp; 1 fire pump. Galv Pipe, Black Pipe, Schd 40/ 10 Grooved &amp; Threaded.