How much grease in the Ez lube?

The naysayers are going to say don't do it. But it does take a lot of grease as it has to go thru the port to the rear bearing, thru that bearing, fill the hub cavity and/or push the old grease thru that cavity, thru the outer bearing, and out the front. Seems it took over a half tube per wheel last time I did it. I did see old grey grease start coming out but took a lot before new red grease started coming out. And, no, grease did not go thru the seal onto my brakes.

Since nothing came out it is likely the hub cavity was not filled with grease.