Level ground for evapotron to prevent water from pooling?

[Caley Goff]

So I've got it running right now in my driveway evaporating.. It ran for 36 hours and didn't stop over the weekend. So now I'm gonna sit it up in the sun and try to get the motor to heat up on the concrete. I wanna try to blow it up out here instead of the desert. Its a brushless motor. I think it will take alot of abuse before it dies. Its supposed to get to 102 degrees today. So we'll see how it does.  I have some questions though after seeing water in the tray.

How did you handle the ground not being level? 

I am finding at least in my drive way with the tilt, water pools at one end of the tray. I'm using 3in PVC pipe tied together by rope in the shape of a square to form the tray. The frame sits down on top of black mil plastic into the frame to form a tray. 

Here is a video of it pulling up water if you're curious 

https://www.facebook.com/goff.caley/videos/10100892609447304/