My first (very basic) setup...with questions

[granth]

I have my nutrient tub at the bottom, empty as of now, but it's there with my grow pots up above. I have some clear tubing to run up to the pots for water input and will improvise a drain system with whats left over. My net pots are not in place yet either....i'm planning things out right now.

Obviously I have planned for a flood/drain setup but am debating on switching over to a drip system. My concern with the drip system is, how do you regulate flow and is it by timer like the flood/drain is? would securing a wooden dowel or similar with the drip tube secured to it be enough for placement?