diff --git a/init.lua b/init.lua
index 86f1997..231d7bf 100644
--- a/init.lua
+++ b/init.lua
@@ -67,13 +67,16 @@ end
 
 function tsm_pyramids.fill_chest(pos, stype, flood_sand, treasure_chance)
 	local sand = "default:sand"
+	local n = minetest.get_node(pos)
+	local meta = minetest.get_meta(pos)
 	if not treasure_chance then
 		treasure_chance = 100
 	end
-	if stype == "desert_sandstone" or stype == "desert_stone" then
+	if meta:get_string("tsm_pyramids:stype") == "desert_sandstone" or
+		meta:get_string("tsm_pyramids:stype") == "desert_stone" or
+	stype == "desert_sandstone" or stype == "desert_stone" then
 		sand = "default:desert_sand"
 	end
-	local n = minetest.get_node(pos)
 	local treasure_added = false
 	if n and n.name and n.name == "default:chest" then
 		local meta = minetest.get_meta(pos)
@@ -81,13 +84,13 @@ function tsm_pyramids.fill_chest(pos, stype, flood_sand, treasure_chance)
 		inv:set_size("main", 8*4)
 		local stacks = {}
 		-- Fill with sand in sand-flooded pyramids
-		if flood_sand then
+		if meta:get_int("tsm_pyramids:sanded") == 1 or flood_sand then
 			table.insert(stacks, {name=sand, count = math.random(1,32)})
 		end
 		-- Add treasures
 		if math.random(1,100) <= treasure_chance then
 			if minetest.get_modpath("treasurer") ~= nil then
-				stacks = treasurer.select_random_treasures(3,7,9,{"minetool", "food", "crafting_component"})
+				stacks = treasurer.select_random_treasures(3,1,5,{"armes", "armures", "precieux", "nourriture"})
 			else
 				for i=0,2,1 do
 					local stuff = chest_stuff.normal[math.random(1,#chest_stuff.normal)]
diff --git a/nodes.lua b/nodes.lua
index 6c3cb0f..4ea9a39 100644
--- a/nodes.lua
+++ b/nodes.lua
@@ -97,3 +97,30 @@ register_trap_stone("desert_trap",
 	"default_desert_sandstone_brick.png",
 	{ items = { { items = { "default:desert_sand" }, rarity = 1 }, { items = { "default:desert_sand" }, rarity = 2 }, } })
 
+local chest = minetest.registered_nodes["default:chest"]
+local def_on_rightclick = chest.on_rightclick
+local def_on_timer = chest.on_timer
+minetest.override_item(
+	"default:chest",
+	{
+		on_rightclick = function(pos, node, clicker, itemstack, pointed_thing)
+			if minetest.get_meta(pos):get_string("tsm_pyramids:stype") ~= "" then
+				local timer = minetest.get_node_timer(pos)
+				if not timer:is_started() then
+					timer:start(1800) -- remplissages des coffres toutes les 30 minutes
+				end
+			end
+			return def_on_rightclick(pos, node, clicker, itemstack, pointed_thing)
+		end,
+		on_timer = function(pos, elapsed)
+			if minetest.get_meta(pos):get_string("tsm_pyramids:stype") ~= "" then
+				minetest.log("action", "[DEBUG] chest refilling")
+				tsm_pyramids.fill_chest(pos)
+				return false
+			else
+				if def_on_timer then return def_on_timer(pos, elapsed) else return false end
+			end
+		end,
+})
+
+minetest.register_alias("tsm_pyramids:chest", "default:chest")
diff --git a/room.lua b/room.lua
index a794c6e..a7edc6f 100644
--- a/room.lua
+++ b/room.lua
@@ -960,6 +960,7 @@ function tsm_pyramids.make_room(pos, stype, room_id, rotations)
 		end
 		tries = tries + 1
 	end
+	local sanded = room.flood_sand ~= false and stype ~= "desert_stone" and math.random(1,8) == 1
 	local chests = {}
 	local column_style
 	if stype == "desert_stone" then
@@ -1002,6 +1003,13 @@ function tsm_pyramids.make_room(pos, stype, room_id, rotations)
 					local nn = replace(n_str, iy, code_table, deco, column_style)
 					minetest.set_node(cpos, {name=nn, param2=p2})
 					if nn == "default:chest" then
+						local meta = minetest.get_meta(cpos)
+						meta:set_string("tsm_pyramids:stype", stype)
+						if sanded then
+							meta:set_int("tsm_pyramids:sanded", 1)
+						else
+							meta:set_int("tsm_pyramids:sanded", 0)
+						end
 						table.insert(chests, cpos)
 					end
 				end
@@ -1045,6 +1053,13 @@ function tsm_pyramids.make_room(pos, stype, room_id, rotations)
 					local nn = code_table[n_str]
 					minetest.set_node(cpos, {name=nn, param2=p2})
 					if nn == "default:chest" then
+						local meta = minetest.get_meta(cpos)
+						meta:set_string("tsm_pyramids:stype", stype)
+						if sanded then
+							meta:set_int("tsm_pyramids:sanded", 1)
+						else
+							meta:set_int("tsm_pyramids:sanded", 0)
+						end
 						table.insert(chests, cpos)
 					end
 				end
@@ -1053,7 +1068,6 @@ function tsm_pyramids.make_room(pos, stype, room_id, rotations)
 	else
 		minetest.log("error", "Invalid pyramid room style! room type ID="..r)
 	end
-	local sanded = room.flood_sand ~= false and stype ~= "desert_stone" and math.random(1,8) == 1
 	if #chests > 0 then
 		-- Make at least 8 attempts to fill chests
 		local filled = 0