I was told by the guy at the parts store that they did away with the springs because they had issues with them working their way into the water pump and damaging it. That kinda tells me that they either didn't need to be there, wern't needed on newer vehicles or solved the collapsing problem another way. It makes sense to me that if the hose is collapsing then the pump might be flowing too much, or the hose is old. A pump can't push water if there's a restriction on the inlet side and can't pull water if there's a restriction on the outlet side i would think but i'm no expert.