Now with 100% less catastrophic atmospherics failure

code/ATMOSPHERICS/pipes/manifold.dm

@@ -62,7 +62,6 @@
 /obj/machinery/atmospherics/pipe/manifold/hide(var/i)
 	if(level == 1 && istype(loc, /turf/simulated))
 		invisibility = i ? 101 : 0
-	update_icon()
 
 /obj/machinery/atmospherics/pipe/manifold/pipeline_expansion()
 	return list(node1, node2, node3)
@@ -121,14 +120,8 @@
 
 	alpha = 255
 
-	if(!node1 && !node2 && !node3)
-		var/turf/T = get_turf(src)
-		new /obj/item/pipe(loc, make_from=src)
-		for (var/obj/machinery/meter/meter in T)
-			if (meter.target == src)
-				new /obj/item/pipe_meter(T)
-				qdel(meter)
-		qdel(src)
+	if(!check_nodes_exist())
+		return
 	else
 		overlays.Cut()
 		overlays += icon_manager.get_atmos_icon("manifold", , pipe_color, "core" + icon_connect_type)
@@ -155,6 +148,14 @@
 	..()
 	update_icon()
 
+// A check to make sure both nodes exist - self-delete if they aren't present
+/obj/machinery/atmospherics/pipe/manifold/check_nodes_exist()
+	if(!node1 && !node2 && !node3)
+		Deconstruct()
+		return 0 // 0: No nodes exist
+	// 1: 1-3 nodes exist, we continue existing
+	return 1
+
 /obj/machinery/atmospherics/pipe/manifold/visible
 	icon_state = "map"
 	level = 2

code/ATMOSPHERICS/pipes/pipe.dm

@@ -85,3 +85,7 @@
 		return node.pipe_color
 	else
 		return pipe_color
+
+// A check to make sure both nodes exist - self-delete if they aren't present
+/obj/machinery/atmospherics/pipe/proc/check_nodes_exist()
+	return

code/ATMOSPHERICS/pipes/simple/pipe_simple.dm

@@ -66,6 +66,7 @@
 							connected_to = c
 							node2 = target
 							break
+
 		var/turf/T = loc			// hide if turf is not intact
 		hide(T.intact)
 		update_icon()
@@ -141,23 +142,24 @@
 
 	overlays.Cut()
 
-	if(!node1 && !node2)
-		var/turf/T = get_turf(src)
-		new /obj/item/pipe(loc, make_from=src)
-		for (var/obj/machinery/meter/meter in T)
-			if (meter.target == src)
-				new /obj/item/pipe_meter(T)
-				qdel(meter)
-		qdel(src)
-	else if(node1 && node2)
+	if(!check_nodes_exist()) // such a stupid place for a self-deletion check
+		return
+	if(node1 && node2)
 		overlays += icon_manager.get_atmos_icon("pipe", , pipe_color, pipe_icon + "intact" + icon_connect_type)
 	else
 		overlays += icon_manager.get_atmos_icon("pipe", , pipe_color, pipe_icon + "exposed[node1?1:0][node2?1:0]" + icon_connect_type)
 
+// A check to make sure both nodes exist - self-delete if they aren't present
+/obj/machinery/atmospherics/pipe/simple/check_nodes_exist()
+	if(!node1 && !node2)
+		Deconstruct()
+		return 0 // 0: No nodes exist
+	// 1: 1-2 nodes exist, we continue existing
+	return 1
+
 /obj/machinery/atmospherics/pipe/simple/update_underlays()
 	return
 
 /obj/machinery/atmospherics/pipe/simple/hide(var/i)
 	if(level == 1 && istype(loc, /turf/simulated))
 		invisibility = i ? 101 : 0
-	update_icon()