Spring in bottem heater hose

The spring is not needed in a propely functioning cooling system. The hose collapse hysteria Krapy alludes to is due to a stuck open thermostat on an engine running high rpm (highway/deep gears) with a old worn out soft hose. And the wire coil whose purpose is to prevent this on poorly maintained cars is potentialy more problematic than the benefit of preventing this unlikely (yet possible under certain circumstances I've described above) overheating .

But I'll leave it up to Krapy the expert to explain exactly what potential problems the spring could cause if he's man enough to show us some more of his expertise.