Well, not
way ahead, you can see my middle poles from years ago.

It was ineffective along the tarp connection at the top pvc. I wasn’t able to keep the plastic taut enough (going down the sides) and it still trapped water. I had to go out in the middle of the night and poke the tarp to release the trapped water. So keep a poking pole handy! Could be my center pole didn’t create a steep enough angle, but it was really hard not to get some pooling, which would snowball into lots of pooling. Eventually I moved to the hoop house design which sheds water better. Good luck!
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