Attachment for a vacuum pump

An attachment for a vacuum pump for introducing new coolant into a cooling system of a vehicle, said attachment having:

• a body having:
• a resilient cone having an inlet for air from the cooling system of the vehicle after spent coolant has been drained from the cooling system;
• an inlet for the new coolant;
• a nozzle having an outlet;
• a passage connecting the outlet to each of the inlets, the nozzle being attachable to the vacuum pump and the cone being attachable to a neck of a radiator of the cooling system;
• and
• a jumper valve located within the passage adjacent the outlet, said jumper valve being moveable between a first position in which the passage is closed and a second position in which the passage is open, the jumper valve being biased into the first position and movable into the second position when a vacuum is applied to the attachment by the vacuum pump, and when the jumper valve is in the second position, air may be drawn from the cooling system to form a partial vacuum therein;
• a tap attached to the inlet for the new coolant and new coolant may be introduced into the cooling system when the system is under vacuum and when the tap is opened;
• a hose extending from the tap to a source of the new coolant;
• and
• a pressure gauge attached to the body for monitoring the pressure within the passage.