Our Cities rat issue is easting the underground TWC in chases in the street. Stupid critters even eat through concrete.
IMT Ridged rusts through in Wisconsin soil around 15 years. Sked 40 or 80 Pipe with PVC pushed inside should last a life time. Back in the day at the paper mill we used Sked 40 with lined PVC, special made stuff buried that underground lasted over 30 years and no doubt is still there intact. Gas line was double jacketed. Stuff is over 60 years and still going. Inner jacket copper pipe still like new. -- Jim K9TF _________________ Topband Reflector
