diff --git a/code/modules/atmospherics/machinery/atmosmachinery.dm b/code/modules/atmospherics/machinery/atmosmachinery.dm
index 0429b92377e..ce70c93a558 100644
--- a/code/modules/atmospherics/machinery/atmosmachinery.dm
+++ b/code/modules/atmospherics/machinery/atmosmachinery.dm
@@ -280,8 +280,8 @@
  * * given_layer - the piping_layer we are checking
  */
 /obj/machinery/atmospherics/proc/connection_check(obj/machinery/atmospherics/target, given_layer)
-	//if target is not multiz then we have to check if the target & src connect in the same direction
-	if(!istype(target, /obj/machinery/atmospherics/pipe/multiz) && !((initialize_directions & get_dir(src, target)) && (target.initialize_directions & get_dir(target, src))))
+	//check if the target & src connect in the same direction
+	if(!((initialize_directions & get_dir(src, target)) && (target.initialize_directions & get_dir(target, src))))
 		return FALSE
 
 	//both target & src can't be connected either way
diff --git a/code/modules/atmospherics/machinery/components/components_base.dm b/code/modules/atmospherics/machinery/components/components_base.dm
index 931a952658c..130c144d424 100644
--- a/code/modules/atmospherics/machinery/components/components_base.dm
+++ b/code/modules/atmospherics/machinery/components/components_base.dm
@@ -268,6 +268,10 @@
 	if(!.)
 		return FALSE
 	set_init_directions()
+	reconnect_nodes()
+	return TRUE
+
+/obj/machinery/atmospherics/components/proc/reconnect_nodes()
 	for(var/i in 1 to device_type)
 		var/obj/machinery/atmospherics/node = nodes[i]
 		if(node)
@@ -285,7 +289,6 @@
 			node.add_member(src)
 			update_parents()
 		SSair.add_to_rebuild_queue(src)
-	return TRUE
 
 /**
  * Disconnects all nodes from ourselves, remove us from the node's nodes.
diff --git a/code/modules/atmospherics/machinery/components/unary_devices/thermomachine.dm b/code/modules/atmospherics/machinery/components/unary_devices/thermomachine.dm
index 5067dcddae2..5c894274619 100644
--- a/code/modules/atmospherics/machinery/components/unary_devices/thermomachine.dm
+++ b/code/modules/atmospherics/machinery/components/unary_devices/thermomachine.dm
@@ -129,7 +129,7 @@
 	if(!initial(icon))
 		return
 	var/mutable_appearance/thermo_overlay = new(initial(icon))
-	. += get_pipe_image(thermo_overlay, "pipe", dir, COLOR_LIME, piping_layer)
+	. += get_pipe_image(thermo_overlay, "pipe", dir, pipe_color, piping_layer)
 
 /obj/machinery/atmospherics/components/unary/thermomachine/examine(mob/user)
 	. = ..()
@@ -222,6 +222,8 @@
 		return ITEM_INTERACT_SUCCESS
 	piping_layer = (piping_layer >= PIPING_LAYER_MAX) ? PIPING_LAYER_MIN : (piping_layer + 1)
 	to_chat(user, span_notice("You change the circuitboard to layer [piping_layer]."))
+	if(anchored)
+		reconnect_nodes()
 	update_appearance()
 	return ITEM_INTERACT_SUCCESS
 
@@ -233,6 +235,8 @@
 	set_pipe_color(GLOB.pipe_paint_colors[GLOB.pipe_paint_colors[color_index]])
 	visible_message(span_notice("[user] set [src]'s pipe color to [GLOB.pipe_color_name[pipe_color]]."), ignored_mobs = user)
 	to_chat(user, span_notice("You set [src]'s pipe color to [GLOB.pipe_color_name[pipe_color]]."))
+	if(anchored)
+		reconnect_nodes()
 	update_appearance()
 	return ITEM_INTERACT_SUCCESS
 
diff --git a/code/modules/atmospherics/machinery/pipes/multiz.dm b/code/modules/atmospherics/machinery/pipes/multiz.dm
index 7e14b8a9806..ebe29531316 100644
--- a/code/modules/atmospherics/machinery/pipes/multiz.dm
+++ b/code/modules/atmospherics/machinery/pipes/multiz.dm
@@ -9,7 +9,7 @@
 	initialize_directions = SOUTH
 
 	layer = HIGH_OBJ_LAYER
-	device_type = UNARY
+	device_type = TRINARY
 	paintable = FALSE
 
 	construction_type = /obj/item/pipe/directional
@@ -54,8 +54,8 @@
 	for(var/obj/machinery/atmospherics/pipe/multiz/above in GET_TURF_ABOVE(local_turf))
 		if(!is_connectable(above, piping_layer))
 			continue
-		nodes += above
-		above.nodes += src //Two way travel :)
+		nodes[2] = above
+		above.nodes[3] = src //Two way travel :)
 	for(var/obj/machinery/atmospherics/pipe/multiz/below in GET_TURF_BELOW(local_turf))
 		if(!is_connectable(below, piping_layer))
 			continue