The "collection" is actually a tool used to stabilize wrecked vehicles. They are referred to as "Step Chocks". Usually crafted in station from 4x2 timber.
Thanks everyone. Interesting how different fire services equip their trucks in various unique ways and find alternative places to store everything.
But I agree, the tube is still a bit of a mystery to me too! The Russians and Dutch store their suction hoses in these kind of tubes, but I don't see London carrying only one single suction on each pump?
Added by Rob Johnson on 06 April 2013.