Im building a 3v dome about 8' radius.. its gonna be the 5/8 variety. Im in canada so conduit is very expensive, but i found a screaming deal on 60 10' lengths so Im going ahead with it all in 3/4". Thanks for the input!

Hey,

I'm a first time dome builder, and I was wondering if you can use different sized conduit for the lower sections of the dome. I found a bunch of cheap conduit and I can have 1.5" conduit at the base and 3/4" after the bottom section.. is this at all possible?