I was looking to make a DIY 36 inch RX2700, the only issue i see is the lip on the bottom of the outer lower domes (as seen on the picture demonstrated by a 21 series dome).
Does code 3/ecco just use domes with that lip cut off? and if the lip is cut off how is a weather proof seal kept inbeteen the domes?
Does code 3/ecco just use domes with that lip cut off? and if the lip is cut off how is a weather proof seal kept inbeteen the domes?

