Still had some water in the grey 2 line when it froze up this week, still just waiting for the break next week to finish the skirting and add the winter doodads (new shorter sewer hose and extended valve handle)!
Silver lining is that it was the gray tank. Could’ve been a lot smellier and a lot grosser.
Curious, what am I looking at? It doesn’t freeze where I live. What happened?