Or use aquamira and save a few more..
If you are talking about Aquamira drops, well I would rather use something that says it will work for what needs to be killed.
Well, I use the canadian version, which is called "pristine" but it's the same stuff. and the label I read says it kills stuff just fine.
And yes that means I typically wait 30 minutes. Most of my friends who pump wait more than 30 minutes of pumping and fiddling and filter breakage and blah blah..
I hit water source, suck back what's in the bag, fill up, treat, and keep walking. (or chill for 30 minutes and watch the pump follies if I am with one of those)