diff --git a/coal_power_station/firebox.lua b/coal_power_station/firebox.lua
index b61888c..6ac5fab 100644
--- a/coal_power_station/firebox.lua
+++ b/coal_power_station/firebox.lua
@@ -281,11 +281,12 @@ minetest.register_node("techage:oilfirebox", {
 		capa = oilburner.CAPACITY,
 		peek = liquid.srv_peek,
 		put = function(pos, indir, name, amount)
-			liquid.srv_put(pos, indir, name, amount)
+			local leftover = liquid.srv_put(pos, indir, name, amount)
 			local mem = tubelib2.get_mem(pos)
 			mem.liquid = mem.liquid or {}
 			mem.liquid.amount = mem.liquid.amount or 0
 			start_firebox2(pos, mem)
+			return leftover
 		end,
 		take = liquid.srv_take,
 	},
diff --git a/furnace/firebox.lua b/furnace/firebox.lua
index 2d60544..1ed1871 100644
--- a/furnace/firebox.lua
+++ b/furnace/firebox.lua
@@ -175,13 +175,7 @@ minetest.register_node("techage:furnace_firebox_on", {
 	liquid = {
 		capa = oilburner.CAPACITY,
 		peek = liquid.srv_peek,
-		put = function(pos, indir, name, amount)
-			liquid.srv_put(pos, indir, name, amount)
-			local mem = tubelib2.get_mem(pos)
-			mem.liquid = mem.liquid or {}
-			mem.liquid.amount = mem.liquid.amount or 0
-			start_firebox(pos, mem)
-		end,
+		put = liquid.srv_put,
 		take = liquid.srv_take,
 	},
 	networks = oilburner.networks,
diff --git a/init.lua b/init.lua
index 9597825..eee810f 100644
--- a/init.lua
+++ b/init.lua
@@ -216,6 +216,7 @@ else
 	-- Chemistry
 	--dofile(MP.."/chemistry/ta4_reactor.lua")
 	--dofile(MP.."/chemistry/ta4_doser.lua")
+	--dofile(MP.."/chemistry/ta4_distiller.lua")
 	
 	-- Hydrogen
 	dofile(MP.."/hydrogen/hydrogen.lua")
diff --git a/liquids/liquid.lua b/liquids/liquid.lua
index 1852953..15acae6 100644
--- a/liquids/liquid.lua
+++ b/liquids/liquid.lua
@@ -117,13 +117,13 @@ function techage.liquid.put(pos, outdir, name, amount)
 		if liquid and liquid.put and liquid.peek then
 			-- wrong items?
 			local peek = liquid.peek(item.pos, item.indir)
-			if peek and peek ~= name then return amount end
+			if peek and peek ~= name then return amount or 0 end
 			--techage.mark_position("singleplayer", item.pos, "put", "", 1) ------------------- debug
 			amount = liquid.put(item.pos, item.indir, name, amount)
-			if amount == 0 then break end
+			if not amount or amount == 0 then break end
 		end
 	end
-	return amount
+	return amount or 0
 end
 
 -- Take given amount of liquid for the remote inventory.
@@ -159,6 +159,7 @@ end
 function techage.liquid.srv_put(pos, indir, name, amount)
 	local mem = tubelib2.get_mem(pos)
 	mem.liquid = mem.liquid or {}
+	amount = amount or 0
 	if not mem.liquid.name then
 		mem.liquid.name = name
 		mem.liquid.amount = amount
@@ -181,6 +182,7 @@ end
 function techage.liquid.srv_take(pos, indir, name, amount)
 	local mem = tubelib2.get_mem(pos)
 	mem.liquid = mem.liquid or {}
+	amount = amount or 0
 	if not name or mem.liquid.name == name then
 		name = mem.liquid.name
 		mem.liquid.amount = mem.liquid.amount or 0
diff --git a/liquids/tank.lua b/liquids/tank.lua
index a1eff95..dd8df09 100644
--- a/liquids/tank.lua
+++ b/liquids/tank.lua
@@ -105,7 +105,7 @@ local function allow_metadata_inventory_put(pos, listname, index, stack, player)
 	if minetest.is_protected(pos, player:get_player_name()) then
 		return 0
 	end
-	return 1
+	return stack:get_count()
 end
 
 local function allow_metadata_inventory_take(pos, listname, index, stack, player)
diff --git a/textures/techage_reactor_side.png b/textures/techage_reactor_side.png
index 5845854..9cb1c08 100644
Binary files a/textures/techage_reactor_side.png and b/textures/techage_reactor_side.png differ