diff --git a/elepower_dynamics/crafting.lua b/elepower_dynamics/crafting.lua
index 80d9ffe..d46834a 100644
--- a/elepower_dynamics/crafting.lua
+++ b/elepower_dynamics/crafting.lua
@@ -210,6 +210,27 @@ minetest.register_craft({
 	}
 })
 
+minetest.register_craft({
+	output = "elepower_dynamics:pcb_blank",
+	recipe = {
+		{"default:copper_ingot", "default:copper_ingot", "default:copper_ingot"},
+		{"default:copper_ingot", "default:mese_crystal", "default:copper_ingot"},
+		{"default:gold_ingot", "elepower_dynamics:viridisium_ingot", "default:gold_ingot"},
+	}
+})
+
+minetest.register_craft({
+	type = "shapeless",
+	output = "elepower_dynamics:acidic_compound",
+	recipe = {
+		"elepower_dynamics:viridisium_dust",
+		"elepower_dynamics:viridisium_dust",
+		"elepower_dynamics:viridisium_dust",
+		"elepower_dynamics:viridisium_dust",
+		"farming:seed_wheat",
+	}
+})
+
 minetest.register_craft({
 	output = "elepower_dynamics:integrated_circuit",
 	recipe = {
diff --git a/elepower_dynamics/craftitems.lua b/elepower_dynamics/craftitems.lua
index 37a67ac..28fbdcd 100644
--- a/elepower_dynamics/craftitems.lua
+++ b/elepower_dynamics/craftitems.lua
@@ -81,12 +81,39 @@ minetest.register_craftitem("elepower_dynamics:tree_tap", {
 	groups = {treetap = 1, static_component = 1}
 })
 
+minetest.register_craftitem("elepower_dynamics:pcb_blank", {
+	description = "Printed Circuit Board (PCB) Blank",
+	inventory_image = "elepower_blank_pcb.png",
+	liquids_pointable = true,
+	groups = {blank_board = 1, static_component = 1}
+})
+
 minetest.register_craftitem("elepower_dynamics:pcb", {
 	description = "Printed Circuit Board (PCB)",
 	inventory_image = "elepower_pcb.png",
 	groups = {pcb = 1, static_component = 1}
 })
 
+minetest.register_craftitem("elepower_dynamics:acidic_compound", {
+	description = "Acidic Compound\nUsed to make Etching Acid",
+	inventory_image = "elepower_acidic_compound.png",
+	liquids_pointable = true,
+	groups = {acid = 1, static_component = 1},
+	on_place = function (itemstack, placer, pointed_thing)
+		local pos  = pointed_thing.under
+		local node = minetest.get_node(pos)
+		
+		if not node.name == "water_source" then
+			return itemstack
+		end
+
+		minetest.set_node(pos, {name = "elepower_dynamics:etching_acid_source"})
+		itemstack:take_item(1)
+
+		return itemstack
+	end,
+})
+
 -- Electronics
 
 minetest.register_craftitem("elepower_dynamics:wound_copper_coil", {
diff --git a/elepower_dynamics/dusts.lua b/elepower_dynamics/dusts.lua
index d4c8b5b..5a735e8 100644
--- a/elepower_dynamics/dusts.lua
+++ b/elepower_dynamics/dusts.lua
@@ -106,7 +106,7 @@ elepd.register_dust("viridisium", {
 })
 
 elepd.register_dust("wood", {
-	description = "Wood Shavings",
+	description = "Sawdust",
 	force_description = true,
 	color = "#847454"
 })
diff --git a/elepower_dynamics/init.lua b/elepower_dynamics/init.lua
index 2f55d4c..d6b9b05 100644
--- a/elepower_dynamics/init.lua
+++ b/elepower_dynamics/init.lua
@@ -11,6 +11,7 @@ dofile(modpath.."/craftitems.lua")
 dofile(modpath.."/plastic.lua")
 dofile(modpath.."/tools.lua")
 dofile(modpath.."/nodes.lua")
+dofile(modpath.."/liquids.lua")
 dofile(modpath.."/tanks.lua")
 dofile(modpath.."/dusts.lua")
 dofile(modpath.."/gears.lua")
diff --git a/elepower_dynamics/liquids.lua b/elepower_dynamics/liquids.lua
new file mode 100644
index 0000000..f91f2e2
--- /dev/null
+++ b/elepower_dynamics/liquids.lua
@@ -0,0 +1,91 @@
+
+local etching = {
+	["elepower_dynamics:pcb_blank"] = {
+		time   = 5,
+		result = "elepower_dynamics:pcb"
+	}
+}
+
+-- Etching Acid
+
+minetest.register_node("elepower_dynamics:etching_acid_source", {
+	description  = "Etching Acid Source",
+	drawtype     = "liquid",
+	tiles        = {"elepower_etching_acid.png"},
+	alpha        = 200,
+	paramtype    = "light",
+	walkable     = false,
+	pointable    = false,
+	diggable     = false,
+	buildable_to = true,
+	is_ground_content = false,
+	drop = "",
+	drowning = 1,
+	liquidtype = "source",
+	liquid_alternative_source = "elepower_dynamics:etching_acid_source",
+	liquid_alternative_flowing = "elepower_dynamics:etching_acid_flowing",
+	liquid_viscosity = 4,
+	damage_per_second = 4,
+	post_effect_color = {a = 103, r = 65, g = 8, b = 0},
+	groups = {acid = 1, etching_acid = 1, liquid = 3, tree_fluid = 1},
+	sounds = default.node_sound_water_defaults(),
+	on_rightclick = function (pos, node, clicker, itemstack, pointed_thing)
+		local istack = itemstack:get_name()
+		if not clicker or clicker:get_player_name() == "" then
+			return itemstack
+		end
+
+		if not etching[istack] then
+			return itemstack
+		end
+
+		local recipe = etching[istack]
+		local out    = ItemStack(recipe.result)
+		local inv    = clicker:get_inventory()
+		local meta   = minetest.get_meta(pos)
+		local uses   = meta:get_int("uses")
+
+		if inv:room_for_item("main", out) then
+			inv:add_item("main", out)
+			itemstack:take_item(1)
+			uses = uses + 1
+		end
+
+		-- Limited etchings
+		if uses == 10 then
+			minetest.set_node(pos, {name = "default:water_source"})
+		else
+			meta:set_int("uses", uses)
+		end
+
+		return itemstack
+	end
+})
+
+minetest.register_node("elepower_dynamics:etching_acid_flowing", {
+	description = "Flowing Etching Acid",
+	drawtype = "flowingliquid",
+	tiles = {"elepower_etching_acid.png"},
+	special_tiles = {"elepower_etching_acid.png", "elepower_etching_acid.png"},
+	alpha = 200,
+	paramtype = "light",
+	paramtype2 = "flowingliquid",
+	walkable = false,
+	pointable = false,
+	diggable = false,
+	buildable_to = true,
+	is_ground_content = false,
+	drop = "",
+	drowning = 1,
+	liquidtype = "flowing",
+	liquid_alternative_flowing = "elepower_dynamics:etching_acid_flowing",
+	liquid_alternative_source = "elepower_dynamics:etching_acid_source",
+	liquid_viscosity = 4,
+	damage_per_second = 4,
+	post_effect_color = {a = 103, r = 65, g = 8, b = 0},
+	groups = {acid = 1, etching_acid = 1, liquid = 3, not_in_creative_inventory = 1},
+	sounds = default.node_sound_water_defaults(),
+})
+
+bucket.register_liquid("elepower_dynamics:etching_acid_source", "elepower_dynamics:etching_acid_flowing",
+		"elepower_dynamics:bucket_etching_acid",   "#410800", "Etching Acid Bucket")
diff --git a/elepower_dynamics/textures/elepower_acidic_compound.png b/elepower_dynamics/textures/elepower_acidic_compound.png
new file mode 100644
index 0000000..c06c1fc
Binary files /dev/null and b/elepower_dynamics/textures/elepower_acidic_compound.png differ
diff --git a/elepower_dynamics/textures/elepower_blank_pcb.png b/elepower_dynamics/textures/elepower_blank_pcb.png
new file mode 100644
index 0000000..619c652
Binary files /dev/null and b/elepower_dynamics/textures/elepower_blank_pcb.png differ
diff --git a/elepower_dynamics/textures/elepower_etching_acid.png b/elepower_dynamics/textures/elepower_etching_acid.png
new file mode 100644
index 0000000..d0c550d
Binary files /dev/null and b/elepower_dynamics/textures/elepower_etching_acid.png differ
diff --git a/elepower_dynamics/textures/elepower_pcb.png b/elepower_dynamics/textures/elepower_pcb.png
index 4067d70..7899614 100644
Binary files a/elepower_dynamics/textures/elepower_pcb.png and b/elepower_dynamics/textures/elepower_pcb.png differ
diff --git a/elepower_fapi/transfer_node.lua b/elepower_fapi/transfer_node.lua
index fa0641e..8707960 100644
--- a/elepower_fapi/transfer_node.lua
+++ b/elepower_fapi/transfer_node.lua
@@ -83,8 +83,7 @@ function elefluid.register_transfer_duct(nodename, nodedef)
 		connects_to = {
 			"group:elefluid_transport",
 			"group:elefluid_transport_source",
-			"group:fluid_container",
-			"group:fluidity_tank"
+			"group:fluid_container"
 		},
 	}
 
@@ -94,8 +93,8 @@ function elefluid.register_transfer_duct(nodename, nodedef)
 		end
 	end
 
-	nodedef.on_construct = elefluid.clear_networks
-	nodedef.after_destruct = elefluid.clear_networks
+--	nodedef.on_construct = elefluid.refresh_node
+--	nodedef.after_destruct = elefluid.refresh_node
 
 	minetest.register_node(nodename, nodedef)
 end