houlidsa

A 6000 psi cascade will work, it is just that you will get a reduced number of fills.  However unless their cascade in new (within the last 2-3 years) I highly doubt the containment is rated for 5500. 
Saying the containment unit is not rated for 5550 means that if a cylinder fails, the "explosion" may or may not be contained.
There is not more air.  There is the same amount of air as its minutes rated, it is just compressed into a smaller vessel.  If they went from a 30' 4500 psi, to a 45' 5500 psi cylinder, this would be a little closer to accurate.
 

Saw this at a firehouse.  A few pieces of pipe. One end capped, one end with a garden hose quick disconnect and a bunch of holes drilled in it.  

Saw this at a firehouse.  A few pieces of pipe. One end capped, one end with a garden hose quick disconnect and a bunch of holes drilled in it.  

Saw this at a firehouse.  A few pieces of pipe. One end capped, one end with a garden hose quick disconnect and a bunch of holes drilled in it.  

That's the pre 2013 alarm.  Back when each manufacturer had a proprietary alarms.  NFPA wanted the sound to be universal for universal recognition.

That's the pre 2013 alarm.  Back when each manufacturer had a proprietary alarms.  NFPA wanted the sound to be universal for universal recognition.

That's the pre 2013 alarm.  Back when each manufacturer had a proprietary alarms.  NFPA wanted the sound to be universal for universal recognition.

The 95 db minimum was set because the sound is distorted by heat.  So a PASS that is easily recognizable in the firehouse can be distorted and muffled in a fire.

All PASS are minimum of 95 db.   Its the pattern that it emits that is deceptive and people process as louder / not as loud.  The NFPA 2013 has those spaces between cycles (spike) in sound.  Because of those gaps it deceives the ear because of the way we process sound.
 
The NFPA TIA sound does away with those long valleys between spikes.  Making it sound louder whether it is or is not.

The 95 db minimum was set because the sound is distorted by heat.  So a PASS that is easily recognizable in the firehouse can be distorted and muffled in a fire.

All PASS are minimum of 95 db.   Its the pattern that it emits that is deceptive and people process as louder / not as loud.  The NFPA 2013 has those spaces between cycles (spike) in sound.  Because of those gaps it deceives the ear because of the way we process sound.
 
The NFPA TIA sound does away with those long valleys between spikes.  Making it sound louder whether it is or is not.

The 95 db minimum was set because the sound is distorted by heat.  So a PASS that is easily recognizable in the firehouse can be distorted and muffled in a fire.

All PASS are minimum of 95 db.   Its the pattern that it emits that is deceptive and people process as louder / not as loud.  The NFPA 2013 has those spaces between cycles (spike) in sound.  Because of those gaps it deceives the ear because of the way we process sound.
 
The NFPA TIA sound does away with those long valleys between spikes.  Making it sound louder whether it is or is not.

Its everyone from the manufacturer of the fire hood to the guy who sold it and the guys who service it.  Its a blanket lawsuit.  The reason MSA is listed because they own Cairns.   
 
Guys laugh when new facepieces have a sticker protecting the lens that says "remove before use".  Read the instruction manuals, some say not to be used in heat or flame.  When does it end?
 
Firefighting is dangerous.  The best trained, best equipped, smartest, fittest firefighters still get hurt and die.
 
If I remember correctly a lot of Phili FD policies were under scrutiny after this fire & long response times.
 
 

He won't get a raise but he'll be a Deputy Commissioner of Something some day or get jammed up because he makes people look bad (or feel bad about themselves).
 
Its odd how that works.

He won't get a raise but he'll be a Deputy Commissioner of Something some day or get jammed up because he makes people look bad (or feel bad about themselves).
 
Its odd how that works.

If I had to guess.  The jake wearing the Scott is from a specialized company, maybe a hazmat.  The Scott appears to be an hour cylinder.  If you thumb through the photos on the twitter link, the G1s look to be 45 ' cylinders and if you look at the older Twitter pics, they used Scott 30'.  So this leads me to believe that using the 60' cylinder is not standard.
 
The G1s appear to have quick connect, which is an adapter which goes over the thread.  This allows for quick connect / disconnect.  So the answer on compatible is yes & no.  You could take the QC adapter off the G1 & stick in the Scott or put an adapter on the Scott & put in the G1.  Not sure if MA is NIOSH state.  If its not you can do that interchange all day long.  If it is a NIOSH state then only in times of emergency or non IDLH.

I think its legit, except for the .50 typo.  That's drinking into a coma range.  Betting its suppose to be .05.  Remember Ireland a year or two back tried to or raised the DWI levels in rural areas.

I think its legit, except for the .50 typo.  That's drinking into a coma range.  Betting its suppose to be .05.  Remember Ireland a year or two back tried to or raised the DWI levels in rural areas.

I think its legit, except for the .50 typo.  That's drinking into a coma range.  Betting its suppose to be .05.  Remember Ireland a year or two back tried to or raised the DWI levels in rural areas.

I think its legit, except for the .50 typo.  That's drinking into a coma range.  Betting its suppose to be .05.  Remember Ireland a year or two back tried to or raised the DWI levels in rural areas.

I disagree, there are times you should hear language like that but it should only be used when its needed like "Get the F out of the building".  
 
This is from Brooklyn.  If it was from the Bronx the reply you would hear would be something to the effect of "Act like you've done this before" or "Are there any professionals on the second floor?"

I disagree, there are times you should hear language like that but it should only be used when its needed like "Get the F out of the building".  
 
This is from Brooklyn.  If it was from the Bronx the reply you would hear would be something to the effect of "Act like you've done this before" or "Are there any professionals on the second floor?"

Guys, I see some accurate info and some dangerous info. This is something guys need to legitimately train with.
Many products out there but here are the two of the three NFPA certified SCBA manufacturers:
1. Scott SCBA buddy breather - the lower filled cylinder will be depleted first when connected with Buddy Breather.
Example: trapped FF has 1/4 cylinder, rescuer has 1/2 cylinder. When connected they combined breath trapped (low cylinder) to 0 then combined breath off of rescuer (high cylinder). This does not allow the rescuer to disconnect and get help if trapped is depleted, hence they are both trapped.
2. MSA SCBA Extendaire II (buddy breather) - the higher filled cylinder will be depleted first when connected with Buddy Breather.
Example: trapped FF has 1/4 cylinder, rescuer has 1/2 cylinder. When connected they combined breath rescuer (high cylinder) to 0 then combined breath off of trapped (low cylinder). This allows the once high to disconnect and get help if he is going to start breathing off the low cylinder.
3. MSA Transfill - equalizes SCBA cylinders (Boyle's Law) allows donor to disconnect or stay connected and they breath evenly down. This is where the URC connection & principal came from. This allows MSA SCBA with a Transfill Quick Connect & Hose or Installed Transfill to be a universal RIT pack of sorts.
4. MSA Extendaire - this is a Quick Connect between 1st & 2nd stage regulators with a "junction box". This is typically used to hook into an aerial's air or air cart. But a FF can disconnect their 2nd stage regulator and connect into the "junction box". Both FFs would be breathing off the same cylinder. If the "junction box" is connected into a MSA Buddy Breather then it works the same as above.

Yonkers thread is different from FDNY thread.
This is why FDNY engines are suppose to carry the yellow adapter to at least get a line connected.