Weld in place remove apply epoxy reinstall the steel.
So the bottom frame will be welded to the 3 inch channel... the 3 inch channel has 5 crossbracea already. bowing on the 3 inch channel should not be an issue ... I hope ... I have room in the 3 inch channel ... I could weld in some angle cross Braces on the bottom frame. Once the overflow is coated and mounted I'll share some pics...
So the bottom frame will be welded to the 3 inch channel... the 3 inch channel has 5 crossbracea already. bowing on the 3 inch channel should not be an issue ... I hope ... I have room in the 3 inch channel ... I could weld in some angle cross Braces on the bottom frame. Once the overflow is coated and mounted I'll share some pics...