Abstract: The present accessory is connected between the pickup head and the intake of a dry vacuum cleaner to catch water drawn in through the pickup head when the vacuum cleaner is in operation. The accessory has a housing with a water collection chamber and a baffle in the way of the discharge from an intake fitting which can be connected to a hose having the vacuum pickup head at its opposite end. An outlet fitting on the housing is out of the direct path of the discharge from the intake fitting. This outlet fitting can be attached to a hose leading to the intake of the vacuum cleaner.