On Thursday, April 13, 2017 at 12:24:18 PM UTC-4, KenK wrote:
I often have this problem - with some weed killer yesterday.


Is there a trick to getting these to work as one would assume, or is it
just me and my product choices?

Be certain the hose is in the liquid and not in too far where it curls back up from the bottom into the air on top. If it is not a clear container I can see that being a possibility.