As far as the Line/Nozzle discussion earlier above not disputing anybody's choices but I do favor 1 3/4 ....when we organized SQ*41 in 1990 we incorporated the "Ghetto Blaster" whose origin came from Nick Visconti when he was the CPT of ENG*48....Our first CPT in SQ*41 John Keenan & FF Kevin McCauley were big proponents of it as they had both used it many times in ENG*37....it was a 15/16th bored out by a machinist to an 1 1/8 with an old time 8 inch brass pipe as the tip & then fitted with a pistol grip ( the trick to get the full effect the pistol grip interior also had to be bored out)...in SQ*41 we had our Primary Bed Nozzle set up as such .... I remember heavy Fire blowing out the front door of a Brownstone Hallway & opening the line from the curb & the stream hitting the back hallway door/wall with little effort.