Replace tower spray on lower dishrack

I just bought a new lower dishrack, but it did not come with the spray tower assembly. I want to use the old spray tower that came with my original dishrack, but I can’t figure out how to take it off and put it on the new dishrack.

This is a duplicated thread.

Answered here: http://forum.appliancepartspros.com/dishwasher-repair/8002-removing-replacing-tower-sprayer.html

Gene.