Posted 7/25/2025 14:39 (#11309284 - in reply to #11309253) Subject: RE: Clay vs. Corrugated plastic tile
Waterloo IA
Thank you! After digging through some old manuals and books, it seems that they agree with that. Based on the notes it seems Clay and Dual-Wall are mathematically the same. The only issue I see is we'd be relying on clay installed in 1984, but that shouldn't be a huge issue.
Clay vs. Corrugated plastic tile
