| Some will disagree, but I was taught 31.3 years ago to inject extra air into my vials to reduce bubbles. I still do it with my pump. I also flick a lot and try to expel any air several times. I usually push the plunger in all the way at least once. If it's particularly bubbly, I let the reservoir sit on end after filling it for a few minutes and flick it some more. I've only had bubble trouble once since June. |