Quote:
Originally Posted by ET2SN
- You can safely pressurize the fire fighting piping and hoses without relying on the trim or drain pump.  Going deeper could mean rupturing a hose or getting your damage control teams air-borne.  |
The firefighting system is pressurized from a specific tank This tank is kept at a press. range for this and to provide flushing water for heads etc.
Firefighting on-board uses the same pressures regardless of sub depth, and the trim pump is (one method) used to fill the tank which of course adds pressure to it.