First, you should concentrate on one color at a time. Follow these steps:
Fill a 5 gallon bucket(Home Depot Homer orange?) with the ink of your choice.
While holding the matching cartridge between the thumb and index finger of your left hand, simply plunge the cartrige to the bottom of the bucket.
Please note.........if the ink doesn't reach at least to your elbow, then you need a deeper bucket.
Hold the cartridge in position for at least 5 minutes to allow it to soak up(absorb) the ink. If the cartridge is very old and dry, increase the soak time up to 3 hours.
Repeat for each color, alternating the arm used for the plunge......left, right, left, right, left, right................
Easy !! No funnels, no needles, no scales, no plugs !!
We have the top fill method, the German method, the freedom method & now we have the Eddie method. I would say the Eddie method looks to be the best fun of them all.