Use KEROSENE Siphon Pump for small tank liquid removal
Answer for "andrewcu" (First post on this thread)
For removal of fluids from containers such as Coolant overflow tank, Windshield Washer tank, even Power Steering etc --- And toilet tanks.
Get a Plastic KEROSENE siphon pump available at one of the big box, hardware or Dept. stores for about $3 for a hand "squeeze" model. Battery operated ones cost about $15 but are not really needed -- and the bottom of suction tube on those is usually larger which will limit where it can be used. This little siphon pump is also handy to remove the last bit of water from a toilet tank when replacing tank parts. When finished use just pump clean water through it, hang it up and allow it to dry out.
Google KEROSENE Siphon Pump. This is the cheapest and most practical type siphon pump for removal of liquids from small containers.