I have been looking at trickle towers made with strawberry pots and wondered if I could put impatiens in the little holes. Has anyone had any experience with this?

Strawberry pots work good and impatiens do well in them.
My veggie filter is kind of like a trickle filter except that it is terraced instead of vertical. I am growing water hyacinths and strawberries in it.

Try doing a forum search for trickle filters.There is a space at the top of the forum page. I recall there were a number of posts on them in the past.

I seem to remember some videos on YouTube that were interesting too.