New duel system question

[Andre]

I have been inspired to build a 4" PVC pipe ebb and flow system from ones I saw on this forum. This is pretty straight forward but I want to add a temporary top drip system while the roots are still small. Can anyone tell me how to attach a 1/4 drip line to a piece of 3/4 PVC. will I need to drill and tap the pvc or what? Never messed with drip components. Thank you, Andre