I just built my dome. This is sort of a Mod but isn't. It was an older model so I don't know if this has changed.
I didn't like the way the wheels mounted on the post tightened. When the bolt passed thru the post if I tightened the bolt to the point that I liked how tight the wall was I didn't like how tight the wheel was. So I added a washer & nylon lock nut inside the post. This way I could tighten the wall down & still keep the wheel nice.
Update: WARNING I forgot to add that if your are going to do this & use nylon lock nuts you need to make sure you turn the nut slowly. It was a long nut so on my first one I went fast with my ratchet. It generated heat which melted the nylon & it went into the threads & locked the nut to the bolt. It was locked so bad & couldn't get it off & had to cut the bolt.
I have a professional pest control company that comes out every 3 months. I got a new technician and he now opens the dome and sprays along the perimeter inside and out. He also treats the bottom of my chair. So far it seems to be working.
I’ve used the Ortho spray you have picked and found it worked well spiders, ants , silver fish etc. until I had a termite problem and went with a service.
Thanks for sharing and the photo.