RV Living Should I leave my black tank open or closed in winter? March 12, 2026 by Tanp | Leave a Comment Deciding whether to leave your RV’s black tank open or closed during winter is crucial for preventing freezing and damage. Generally, it’s best to keep your black tank closed in winter to retain heat and prevent the contents from freezing, especially when not actively using your RV or if temperatures are consistently below freezing. Understanding […] Read more ยป