diff --git a/code/ATMOSPHERICS/components/tvalve.dm b/code/ATMOSPHERICS/components/tvalve.dm
index 61cd0f6c6e..5683df4bf7 100644
--- a/code/ATMOSPHERICS/components/tvalve.dm
+++ b/code/ATMOSPHERICS/components/tvalve.dm
@@ -395,7 +395,7 @@ obj/machinery/atmospherics/tvalve/mirrored
 				return
 			..()
 
-		//Radio remote control
+		//Radio remote control -eh?
 
 		proc
 			set_frequency(new_frequency)
diff --git a/code/ATMOSPHERICS/pipes.dm b/code/ATMOSPHERICS/pipes.dm
index cbff1f1b64..e13a58f601 100644
--- a/code/ATMOSPHERICS/pipes.dm
+++ b/code/ATMOSPHERICS/pipes.dm
@@ -721,7 +721,7 @@ obj/machinery/atmospherics/pipe
 
 				icon_state = "manifold_[connected]_[unconnected]"
 
-				if(!connected)
+				if(!connected) 
 					del(src)
 
 			return
@@ -832,7 +832,7 @@ obj/machinery/atmospherics/pipe
 		icon_state = "manifold-y-f"
 
 	manifold4w
-		icon = 'pipe_manifold.dmi'
+		icon = 'icons/obj/atmospherics/pipe_manifold.dmi'
 		icon_state = "manifold4w-f"
 
 		name = "4-way pipe manifold"
@@ -841,7 +841,7 @@ obj/machinery/atmospherics/pipe
 		volume = 140
 
 		dir = SOUTH
-		initialize_directions = EAST|NORTH|WEST|SOUTH
+		initialize_directions = NORTH|SOUTH|EAST|WEST
 
 		var/obj/machinery/atmospherics/node1
 		var/obj/machinery/atmospherics/node2
@@ -849,6 +849,7 @@ obj/machinery/atmospherics/pipe
 		var/obj/machinery/atmospherics/node4
 
 		level = 1
+		layer = 2.4 //under wires with their 2.44
 
 		hide(var/i)
 			if(level == 1 && istype(loc, /turf/simulated))
@@ -862,7 +863,7 @@ obj/machinery/atmospherics/pipe
 			if(!parent)
 				..()
 			else
-				machines.Remove(src)
+				. = PROCESS_KILL
 /*
 			if(!node1)
 				parent.mingle_with_turf(loc, 70)
@@ -913,14 +914,13 @@ obj/machinery/atmospherics/pipe
 			if(reference == node4)
 				if(istype(node4, /obj/machinery/atmospherics/pipe))
 					del(parent)
-				node3 = null
+				node4 = null
 
 			update_icon()
 
 			..()
 
 		update_icon()
-			overlays = new()
 			if(node1&&node2&&node3&&node4)
 				var/C = ""
 				switch(color)
@@ -934,7 +934,7 @@ obj/machinery/atmospherics/pipe
 
 			else
 				icon_state = "manifold4w_ex"
-				var/icon/con = new/icon('pipe_manifold.dmi',"manifold4w_con")
+				var/icon/con = new/icon('pipe_manifold.dmi',"manifold4w_con") //Since 4-ways are supposed to be directionless, they need an overlay instead it seems.
 
 				if(node1)
 					overlays += new/image(con,dir=1)
@@ -950,23 +950,24 @@ obj/machinery/atmospherics/pipe
 			return
 
 		initialize()
+			
 			for(var/obj/machinery/atmospherics/target in get_step(src,1))
-				if(target.initialize_directions & get_dir(target,src))
+				if(target.initialize_directions & 2)
 					node1 = target
 					break
 
 			for(var/obj/machinery/atmospherics/target in get_step(src,2))
-				if(target.initialize_directions & get_dir(target,src))
+				if(target.initialize_directions & 1)
 					node2 = target
 					break
 
 			for(var/obj/machinery/atmospherics/target in get_step(src,4))
-				if(target.initialize_directions & get_dir(target,src))
+				if(target.initialize_directions & 8)
 					node3 = target
 					break
 
 			for(var/obj/machinery/atmospherics/target in get_step(src,8))
-				if(target.initialize_directions & get_dir(target,src))
+				if(target.initialize_directions & 4)
 					node4 = target
 					break
 
@@ -1026,6 +1027,88 @@ obj/machinery/atmospherics/pipe
 	manifold4w/general/hidden
 		level = 1
 		icon_state = "manifold4w-f"
+		
+	cap
+		name = "pipe endcap"
+		desc = "An endcap for pipes"
+		icon = 'pipes.dmi'
+		icon_state = "cap"
+		level = 2
+		layer = 2.4 //under wires with their 2.44
+
+		volume = 35
+
+		dir = SOUTH
+		initialize_directions = NORTH
+
+		var/obj/machinery/atmospherics/node
+
+		New()
+			..()
+			switch(dir)
+				if(SOUTH)
+				 initialize_directions = NORTH
+				if(NORTH)
+				 initialize_directions = SOUTH
+				if(WEST)
+				 initialize_directions = EAST
+				if(EAST)
+				 initialize_directions = WEST
+
+		hide(var/i)
+			if(level == 1 && istype(loc, /turf/simulated))
+				invisibility = i ? 101 : 0
+			update_icon()
+
+		pipeline_expansion()
+			return list(node)
+
+		process()
+			if(!parent)
+				..()
+			else
+				. = PROCESS_KILL
+		Del()
+			if(node)
+				node.disconnect(src)
+
+			..()
+
+		disconnect(obj/machinery/atmospherics/reference)
+			if(reference == node)
+				if(istype(node, /obj/machinery/atmospherics/pipe))
+					del(parent)
+				node = null
+
+			update_icon()
+
+			..()
+
+		update_icon()
+			overlays = new()
+
+			icon_state = "cap[invisibility ? "-f" : ""]"
+			return
+
+		initialize()
+			for(var/obj/machinery/atmospherics/target in get_step(src, dir))
+				if(target.initialize_directions & get_dir(target,src))
+					node = target
+					break
+
+			var/turf/T = src.loc			// hide if turf is not intact
+			hide(T.intact)
+			//update_icon()
+			update_icon()
+
+		visible
+			level = 2
+			icon_state = "cap"
+
+		hidden
+			level = 1
+			icon_state = "cap-f"
+
 
 obj/machinery/atmospherics/pipe/attackby(var/obj/item/weapon/W as obj, var/mob/user as mob)
 	if (istype(src, /obj/machinery/atmospherics/pipe/tank))
diff --git a/code/game/machinery/pipe/construction.dm b/code/game/machinery/pipe/construction.dm
index a8488e8c2d..1babba054e 100644
--- a/code/game/machinery/pipe/construction.dm
+++ b/code/game/machinery/pipe/construction.dm
@@ -20,6 +20,9 @@ Buildable meters
 #define PIPE_PASSIVE_GATE       15
 #define PIPE_VOLUME_PUMP        16
 #define PIPE_HEAT_EXCHANGE      17
+#define PIPE_MTVALVE			18
+#define PIPE_MANIFOLD4W			19
+#define PIPE_CAP				20
 
 /obj/item/pipe
 	name = "pipe"
@@ -75,6 +78,12 @@ Buildable meters
 			src.pipe_type = PIPE_VOLUME_PUMP
 		else if(istype(make_from, /obj/machinery/atmospherics/unary/heat_exchanger))
 			src.pipe_type = PIPE_HEAT_EXCHANGE
+		else if(istype(make_from, /obj/machinery/atmospherics/tvalve))
+			src.pipe_type = PIPE_MTVALVE
+		else if(istype(make_from, /obj/machinery/atmospherics/pipe/manifold4w))
+			src.pipe_type = PIPE_MANIFOLD4W
+		else if(istype(make_from, /obj/machinery/atmospherics/pipe/cap))
+			src.pipe_type = PIPE_CAP
 	else
 		src.pipe_type = pipe_type
 		src.dir = dir
@@ -105,6 +114,9 @@ Buildable meters
 		"passive gate", \
 		"volume pump", \
 		"heat exchanger", \
+		"t-valve", \
+		"4-way manifold", \
+		"pipe cap", \
 	)
 	name = nlist[pipe_type+1] + " fitting"
 	var/list/islist = list( \
@@ -126,6 +138,9 @@ Buildable meters
 		"passivegate", \
 		"volumepump", \
 		"heunary", \
+		"mtvalve", \
+		"manifold4w", \
+		"cap", \
 	)
 	icon_state = islist[pipe_type + 1]
 
@@ -149,6 +164,8 @@ Buildable meters
 			dir = 1
 		else if(dir==8)
 			dir = 4
+	else if (pipe_type == PIPE_MANIFOLD4W)
+		dir = 2
 	//src.pipe_dir = get_pipe_dir()
 	return
 
@@ -188,10 +205,14 @@ Buildable meters
 			return dir //dir|acw
 		if(PIPE_CONNECTOR,PIPE_UVENT,PIPE_SCRUBBER,PIPE_HEAT_EXCHANGE)
 			return dir
+		if(PIPE_MANIFOLD4W)
+			return dir|flip|cw|acw
 		if(PIPE_MANIFOLD)
 			return flip|cw|acw
-		if(PIPE_GAS_FILTER, PIPE_GAS_MIXER)
+		if(PIPE_GAS_FILTER, PIPE_GAS_MIXER,PIPE_MTVALVE)
 			return dir|flip|cw
+		if(PIPE_CAP)
+			return flip
 	return 0
 
 /obj/item/pipe/proc/get_pdir() //endpoints for regular pipes
@@ -241,6 +262,8 @@ Buildable meters
 			dir = 1
 		else if(dir==8)
 			dir = 4
+	else if (pipe_type == PIPE_MANIFOLD4W)
+		dir = 2
 	var/pipe_dir = get_pipe_dir()
 
 	for(var/obj/machinery/atmospherics/M in src.loc)
@@ -325,6 +348,31 @@ Buildable meters
 			if (M.node3)
 				M.node3.initialize()
 				M.node3.build_network()
+			
+		if(PIPE_MANIFOLD4W)		//4-way manifold
+			var/obj/machinery/atmospherics/pipe/manifold4w/M = new( src.loc )
+			M.dir = dir
+			M.initialize_directions = pipe_dir
+			//M.New()
+			var/turf/T = M.loc
+			M.level = T.intact ? 2 : 1
+			M.initialize()
+			if (!M)
+				usr << "There's nothing to connect this manifold to! (with how the pipe code works, at least one end needs to be connected to something, otherwise the game deletes the segment)"
+				return 1
+			M.build_network()
+			if (M.node1)
+				M.node1.initialize()
+				M.node1.build_network()
+			if (M.node2)
+				M.node2.initialize()
+				M.node2.build_network()
+			if (M.node3)
+				M.node3.initialize()
+				M.node3.build_network()
+			if (M.node4)
+				M.node4.initialize()
+				M.node4.build_network()
 
 		if(PIPE_JUNCTION)
 			var/obj/machinery/atmospherics/pipe/simple/heat_exchanging/junction/P = new ( src.loc )
@@ -467,6 +515,36 @@ Buildable meters
 			if (P.node2)
 				P.node2.initialize()
 				P.node2.build_network()
+				
+		if(PIPE_MTVALVE)		//manual t-valve
+			var/obj/machinery/atmospherics/tvalve/V = new(src.loc)
+			V.dir = dir
+			V.initialize_directions = pipe_dir
+			if (pipename)
+				V.name = pipename
+			var/turf/T = V.loc
+			V.level = T.intact ? 2 : 1
+			V.initialize()
+			V.build_network()
+			if (V.node1)
+				V.node1.initialize()
+				V.node1.build_network()
+			if (V.node2)
+				V.node2.initialize()
+				V.node2.build_network()
+			if (V.node3)
+				V.node3.initialize()
+				V.node3.build_network()
+				
+		if(PIPE_CAP)
+			var/obj/machinery/atmospherics/pipe/cap/C = new(src.loc)
+			C.dir = dir
+			C.initialize_directions = pipe_dir
+			C.initialize()
+			C.build_network()
+			if(C.node)
+				C.node.initialize()
+				C.node.build_network()
 
 		if(PIPE_PASSIVE_GATE)		//passive gate
 			var/obj/machinery/atmospherics/binary/passive_gate/P = new(src.loc)
@@ -551,7 +629,7 @@ Buildable meters
 	playsound(src.loc, 'sound/items/Ratchet.ogg', 50, 1)
 	user << "\blue You have fastened the meter to the pipe"
 	del(src)
-
+//not sure why these are necessary
 #undef PIPE_SIMPLE_STRAIGHT
 #undef PIPE_SIMPLE_BENT
 #undef PIPE_HE_STRAIGHT
@@ -569,4 +647,6 @@ Buildable meters
 #undef PIPE_GAS_MIXER
 #undef PIPE_PASSIVE_GATE
 #undef PIPE_VOLUME_PUMP
-#undef PIPE_OUTLET_INJECT
\ No newline at end of file
+#undef PIPE_OUTLET_INJECT
+#undef PIPE_MTVALVE
+//#undef PIPE_MANIFOLD4W
\ No newline at end of file
diff --git a/code/game/machinery/pipe/pipe_dispenser.dm b/code/game/machinery/pipe/pipe_dispenser.dm
index d5da74c569..87001bcf47 100644
--- a/code/game/machinery/pipe/pipe_dispenser.dm
+++ b/code/game/machinery/pipe/pipe_dispenser.dm
@@ -19,6 +19,9 @@
 <A href='?src=\ref[src];make=1;dir=5'>Bent Pipe</A><BR>
 <A href='?src=\ref[src];make=5;dir=1'>Manifold</A><BR>
 <A href='?src=\ref[src];make=8;dir=1'>Manual Valve</A><BR>
+<A href='?src=\ref[src];make=20;dir=1'>Pipe Cap</A><BR>
+<A href='?src=\ref[src];make=19;dir=1'>4-Way Manifold</A><BR>
+<A href='?src=\ref[src];make=18;dir=1'>Manual T-Valve</A><BR>
 <b>Devices:</b><BR>
 <A href='?src=\ref[src];make=4;dir=1'>Connector</A><BR>
 <A href='?src=\ref[src];make=7;dir=1'>Unary Vent</A><BR>
@@ -37,8 +40,9 @@
 <b>Insulated pipes:</b><BR>
 <A href='?src=\ref[src];make=11;dir=1'>Pipe</A><BR>
 <A href='?src=\ref[src];make=12;dir=5'>Bent Pipe</A><BR>
-"}
 
+"}
+//What number the make points to is in the define # at the top of construction.dm in same folder
 
 	user << browse("<HEAD><TITLE>[src]</TITLE></HEAD><TT>[dat]</TT>", "window=pipedispenser")
 	onclose(user, "pipedispenser")
diff --git a/icons/obj/atmospherics/pipe_manifold.dmi b/icons/obj/atmospherics/pipe_manifold.dmi
index f98f5869a4..0687e9e8bc 100644
Binary files a/icons/obj/atmospherics/pipe_manifold.dmi and b/icons/obj/atmospherics/pipe_manifold.dmi differ
diff --git a/icons/obj/pipe-item.dmi b/icons/obj/pipe-item.dmi
index 00c5760e01..7aad691051 100644
Binary files a/icons/obj/pipe-item.dmi and b/icons/obj/pipe-item.dmi differ