Ford C Series Chassis Fire Apparatus

[hondok]

IIRC, that rig was a Maxim and Hannay Reels used it in its advertising.There were a total of six reels on borad.   I used HPF on many fires, but never on interior attack.  If the PO did not watch what he was doing, the pressure could creep up to 800 PSI, making it difficult to open the nozzle.

Absolutely!  I remember as a young firefighter using a high pressure booster line on a brush fire and not being able to operate the Bean gun because I didn't have enough strength in my hand to overcome the pressure on the line until the PO opened the relief valve.

 

It's really interesting how things seem to go full circle in the fire service...sprinklers have been in use for many years for fixed building fire protection and now we have high and low pressure mist systems that are being used in place of sprinklers where inadequate water supply or concern for water damage exists.  Same Lloyd Layman principle, now just engineered and designed to ensure that the mist system can handle the BTU production of the specific hazard.