I had some old used pipe fittings laying around.
I experiment quite often.
I ran down to the local hardware and picked up a few missing fittings,
but I had the valves, and cut-offs.
I got it mostly together, and found that I still need 2 couplings, and a T.
I'll swings back down tomorrow and pick them up.
I'm going to test it a little with the yard hose, before I cut a hole in my lake drain.
I may try a side flow by just sticking a smaller pipe up in the bigger drain pipe,
and drop downhill about 20 feet, and see how much pressure that will do.
I like experimenting.
Right now, we just had a good rain, and maybe more expected this evening, but
I do want to be ready, after what we just went through.