The PP does not seem to be connected to the hose reel or tank. Did these have a separate hose reel pump? The comparable German TSF-W, mostly used by small village volunteer fire companies, ties its 1000 LPM portable pump into the 500 liter water tank with a short feeder hose, and is attached to either a 23mm hose reel or flaked 38mm flat hose for instant use.
Added by Rob Johnson on 06 October 2022.