There is trouble with the car

There is trouble with the car:

Wife: "There's trouble with the car. It has water in the carburettor."
Husband: "Water in the carburettor? That's ridiculous."
Wife: "I tell you the car has water in the carburettor."
Husband: "You don't even know what a carburettor is. I'll check it out.
Where's the car?"
Wife: "In the pool."