Why is my UltraStream leaking water from the top?

You might just need to push the spout in a bit further.  The spout can inadvertently be pulled out slightly when moving the UltraStream.
If this is not the answer, then pull off the spout and the rounded cap off the top of the UltraStream. Now replace just the spout and turn on the water.
Where is it leaking from?
Please request support if you are still have an issue.