The creators of The Greenhouse of the Future documentary are letting us give away their massive ebook for free for a few days! I'm talking 180 pages of greenhouse goodness people. Get it while it's hot!
I just made a system very similar to this, minus the bucket, but a similar concept using just gutter fittings. The filter I use is pantyhose, works just as good. I'm hoping it has enough pressure though, it's not very far off the ground. Supposedly this doesn't matter if you're using a soaker hose.