Does it have water intake

are you sure it's water? Hopefully NOT coolant...you might look at the translucent coolant jug to see if it's FULL COLD or HOT or somewhere in between...down would indicate a coolant leak....what I suspect is the air conditioning evaporator is pulling moisture out of the air, gets flooded, creating a whooshing sound on turns and leaks out over your floor...no? What you've got to do is find the evaporator drain and clean it with a pin blaster or drill a 1.4" hole at the elbow where it changes direction towards the firewall/floor and fish a straightened coat hanger down to the outside...I recommend having a mechanic 'pin-blast' your evaporator drain~