diff --git a/src/main/java/robaertschi/environmenttech/client/screen/EnvCollectorScreen.java b/src/main/java/robaertschi/environmenttech/client/screen/EnvCollectorScreen.java
index ca05e80..d86dde5 100644
--- a/src/main/java/robaertschi/environmenttech/client/screen/EnvCollectorScreen.java
+++ b/src/main/java/robaertschi/environmenttech/client/screen/EnvCollectorScreen.java
@@ -1,7 +1,9 @@
 package robaertschi.environmenttech.client.screen;
 
+import com.mojang.blaze3d.systems.RenderSystem;
 import net.minecraft.client.gui.GuiGraphics;
 import net.minecraft.client.gui.screens.inventory.AbstractContainerScreen;
+import net.minecraft.client.renderer.GameRenderer;
 import net.minecraft.network.chat.Component;
 import net.minecraft.resources.ResourceLocation;
 import net.minecraft.world.entity.player.Inventory;
@@ -14,7 +16,7 @@ public class EnvCollectorScreen extends AbstractContainerScreen<EnvCollectorMenu
 
     public EnvCollectorScreen(EnvCollectorMenu pMenu, Inventory pPlayerInventory, Component pTitle) {
         super(pMenu, pPlayerInventory, pTitle);
-//        this.inventoryLabelY = this.imageHeight - 110;
+        this.inventoryLabelY = this.imageHeight - 94;
     }
 
     @Override
@@ -22,5 +24,19 @@ public class EnvCollectorScreen extends AbstractContainerScreen<EnvCollectorMenu
         int relX = (this.width - this.imageWidth) / 2;
         int relY = (this.height - this.imageHeight) / 2;
         pGuiGraphics.blit(GUI, relX, relY, 0, 0, this.imageWidth, this.imageHeight);
+
+        pGuiGraphics.blit(ProgressArrowComponent.SPRITE,
+                relX + 78, relY + 35,
+                0, 0,
+                ProgressArrowComponent.getScaledProgress(menu.getProgress(), menu.getMaxProgress()),16,
+                24,
+                16
+        );
+    }
+
+    @Override
+    public void render(@NotNull GuiGraphics pGuiGraphics, int pMouseX, int pMouseY, float pPartialTick) {
+        super.render(pGuiGraphics, pMouseX, pMouseY, pPartialTick);
+        this.renderTooltip(pGuiGraphics, pMouseX, pMouseY);
     }
 }
diff --git a/src/main/java/robaertschi/environmenttech/client/screen/ProgressArrowComponent.java b/src/main/java/robaertschi/environmenttech/client/screen/ProgressArrowComponent.java
new file mode 100644
index 0000000..908fff8
--- /dev/null
+++ b/src/main/java/robaertschi/environmenttech/client/screen/ProgressArrowComponent.java
@@ -0,0 +1,21 @@
+package robaertschi.environmenttech.client.screen;
+
+import net.minecraft.client.gui.GuiGraphics;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.util.Mth;
+import robaertschi.environmenttech.EnvironmentTech;
+
+public class ProgressArrowComponent {
+    public static final ResourceLocation SPRITE = EnvironmentTech.id("textures/gui/sprites/component/progress_arrow.png");
+
+    public static void draw(GuiGraphics guiGraphics, int x, int y, int progress) {
+        int j1 = Mth.ceil(progress * 22.0F);
+        guiGraphics.blit(SPRITE, x, y, 1, 0, 0, 0, 0, 22, 16);
+    }
+
+    public static int getScaledProgress(int progress, int maxProgress) {
+        int progressArrowSize = 24; // This is the height in pixels of your arrow
+
+        return maxProgress != 0 && progress != 0 ? progress * progressArrowSize / maxProgress : 0;
+    }
+}
diff --git a/src/main/java/robaertschi/environmenttech/level/ETChunkEvents.java b/src/main/java/robaertschi/environmenttech/level/ETChunkEvents.java
index 809a34d..475bc8a 100644
--- a/src/main/java/robaertschi/environmenttech/level/ETChunkEvents.java
+++ b/src/main/java/robaertschi/environmenttech/level/ETChunkEvents.java
@@ -1,5 +1,6 @@
 package robaertschi.environmenttech.level;
 
+import lombok.extern.slf4j.Slf4j;
 import net.minecraft.world.level.chunk.LevelChunk;
 import net.minecraft.world.level.chunk.status.ChunkStatus;
 import net.neoforged.bus.api.SubscribeEvent;
@@ -10,6 +11,7 @@ import robaertschi.environmenttech.EnvironmentTech;
 import robaertschi.environmenttech.data.attachments.ETAttachments;
 
 @EventBusSubscriber(modid = EnvironmentTech.MODID)
+@Slf4j(topic = "EnvironmentTech/ChunkData")
 public class ETChunkEvents {
     @SubscribeEvent()
     public static void onChunkLoad(ChunkEvent.Load event) {
@@ -19,11 +21,11 @@ public class ETChunkEvents {
                 return;
             }
             int random = event.getLevel().getRandom().nextIntBetweenInclusive(Config.minEnvForNewChunk, Config.maxEnvForNewChunk);
-            EnvironmentTech.LOGGER.debug("New Chunk at pos {}, set random to {}", event.getChunk().getPos(), random);
+            log.debug("New Chunk at pos {}, set random to {}", event.getChunk().getPos(), random);
             event.getChunk().setData(ETAttachments.ENV, (long)random);
         } else if (!event.getChunk().hasData(ETAttachments.ENV)) {
             int random = event.getLevel().getRandom().nextIntBetweenInclusive(Config.minEnvForNewChunk, Config.maxEnvForNewChunk);
-            EnvironmentTech.LOGGER.debug("Chunk without data at pos {}, set random to {}",event.getChunk().getPos(), random);
+            log.debug("Chunk without data at pos {}, set random to {}",event.getChunk().getPos(), random);
             event.getChunk().setData(ETAttachments.ENV, (long)random);
         }
     }
diff --git a/src/main/java/robaertschi/environmenttech/level/block/EnvCollectorBlock.java b/src/main/java/robaertschi/environmenttech/level/block/EnvCollectorBlock.java
index 48b287a..bbab3f8 100644
--- a/src/main/java/robaertschi/environmenttech/level/block/EnvCollectorBlock.java
+++ b/src/main/java/robaertschi/environmenttech/level/block/EnvCollectorBlock.java
@@ -3,6 +3,7 @@ package robaertschi.environmenttech.level.block;
 import com.mojang.serialization.MapCodec;
 import lombok.extern.slf4j.Slf4j;
 import net.minecraft.core.BlockPos;
+import net.minecraft.network.RegistryFriendlyByteBuf;
 import net.minecraft.network.chat.Component;
 import net.minecraft.server.level.ServerLevel;
 import net.minecraft.world.InteractionHand;
@@ -66,18 +67,7 @@ public class EnvCollectorBlock extends BaseEntityBlock {
         if (!pLevel.isClientSide) {
             BlockEntity be = pLevel.getBlockEntity(pPos);
             if (be instanceof EnvCollectorBlockEntity) {
-                MenuProvider containerProvider = new MenuProvider() {
-                    @Override
-                    public @NotNull Component getDisplayName() {
-                        return Component.translatable("environmenttech.screen.env_collector");
-                    }
-
-                    @Override
-                    public @NotNull AbstractContainerMenu createMenu(int pContainerId, Inventory pPlayerInventory, Player pPlayer) {
-                        return new EnvCollectorMenu(pContainerId, pPlayer, pPos);
-                    }
-                };
-                pPlayer.openMenu(containerProvider, buf -> buf.writeBlockPos(pPos));
+                pPlayer.openMenu((MenuProvider) be, pPos);
             } else {
                 throw new IllegalStateException("Our named container provider is missing!");
             }
diff --git a/src/main/java/robaertschi/environmenttech/level/block/entity/EnvCollectorBlockEntity.java b/src/main/java/robaertschi/environmenttech/level/block/entity/EnvCollectorBlockEntity.java
index 9fdb0ec..20b2c8d 100644
--- a/src/main/java/robaertschi/environmenttech/level/block/entity/EnvCollectorBlockEntity.java
+++ b/src/main/java/robaertschi/environmenttech/level/block/entity/EnvCollectorBlockEntity.java
@@ -5,7 +5,17 @@ import net.minecraft.core.BlockPos;
 import net.minecraft.core.HolderLookup;
 import net.minecraft.core.registries.Registries;
 import net.minecraft.nbt.CompoundTag;
+import net.minecraft.network.Connection;
+import net.minecraft.network.chat.Component;
+import net.minecraft.network.protocol.Packet;
+import net.minecraft.network.protocol.game.ClientGamePacketListener;
+import net.minecraft.network.protocol.game.ClientboundBlockEntityDataPacket;
 import net.minecraft.server.level.ServerLevel;
+import net.minecraft.world.MenuProvider;
+import net.minecraft.world.entity.player.Inventory;
+import net.minecraft.world.entity.player.Player;
+import net.minecraft.world.inventory.AbstractContainerMenu;
+import net.minecraft.world.inventory.ContainerData;
 import net.minecraft.world.item.ItemStack;
 import net.minecraft.world.level.Level;
 import net.minecraft.world.level.block.entity.BlockEntity;
@@ -20,10 +30,11 @@ import robaertschi.environmenttech.data.capabilities.EnvStorage;
 import robaertschi.environmenttech.data.capabilities.EnvType;
 import robaertschi.environmenttech.data.recipes.ETRecipes;
 import robaertschi.environmenttech.data.recipes.EnvCollectorRecipe;
+import robaertschi.environmenttech.menu.EnvCollectorMenu;
 
 import static robaertschi.environmenttech.EnvironmentTech.MODID;
 
-public class EnvCollectorBlockEntity extends BlockEntity {
+public class EnvCollectorBlockEntity extends BlockEntity implements MenuProvider {
     public static final int SLOT_INPUT = 0;
     public static final int SLOT_INPUT_COUNT = 1;
 
@@ -36,8 +47,11 @@ public class EnvCollectorBlockEntity extends BlockEntity {
     private final ItemStackHandler inventory = new ItemStackHandler(2) {
         @Override
         protected void onContentsChanged(int slot) {
-            super.onContentsChanged(slot);
             EnvCollectorBlockEntity.this.setChanged();
+            assert level != null;
+            if (!level.isClientSide()) {
+                level.sendBlockUpdated(getBlockPos(), getBlockState(), getBlockState(), 3);
+            }
         }
 
         @Override
@@ -53,12 +67,21 @@ public class EnvCollectorBlockEntity extends BlockEntity {
     private final EnvStorage envStorage = new EnvStorage(EnvType.Chunk, 64, 0, 1) {
         @Override
         public void onContentsChanged() {
-            super.onContentsChanged();
             EnvCollectorBlockEntity.this.setChanged();
+            assert level != null;
+            if (!level.isClientSide()) {
+                level.sendBlockUpdated(getBlockPos(), getBlockState(), getBlockState(), 3);
+            }
         }
     };
 
+    @Getter
+    private ContainerData data;
+
+    @Getter
     private int progress = 0;
+    @Getter
+    private int maxProgress = 10;
     // Every 20 ticks, we take ENV from the current Chunk
     private int takeEnv = 0;
     @Nullable
@@ -67,6 +90,29 @@ public class EnvCollectorBlockEntity extends BlockEntity {
 
     public EnvCollectorBlockEntity(BlockPos pos, BlockState state) {
         super(ETBlockEntities.ENV_COLLECTOR_BLOCK_ENTITY.get(), pos, state);
+        this.data = new ContainerData() {
+            @Override
+            public int get(int pIndex) {
+                return switch(pIndex) {
+                    case 0 -> EnvCollectorBlockEntity.this.progress;
+                    case 1 -> EnvCollectorBlockEntity.this.maxProgress;
+                    default -> 0;
+                };
+            }
+
+            @Override
+            public void set(int pIndex, int pValue) {
+                switch (pIndex) {
+                    case 0 -> EnvCollectorBlockEntity.this.progress = pValue;
+                    case 1 -> EnvCollectorBlockEntity.this.maxProgress = pValue;
+                }
+            }
+
+            @Override
+            public int getCount() {
+                return 2;
+            }
+        };
     }
 
     @Override
@@ -118,17 +164,19 @@ public class EnvCollectorBlockEntity extends BlockEntity {
         }
 
         if (hasRecipe(level)) {
-            if (progress > 0 && progress < 60) {
+            if (progress > 0 && progress < getMaxProgress()) {
                 progress++;
             } else if (progress > 0) {
                 produce(level);
                 progress = 0;
-            } else {
+            } else if (getOutputItem().getCount() < getOutputItem().getMaxStackSize()){
                 assert currentRecipe != null;
-                if (envStorage.getEnvStored() >= currentRecipe.envUsed()) {
-                    envStorage.setEnvStored(envStorage.getEnvStored() - currentRecipe.envUsed());
-                    progress = 1;
-                }
+//                if (envStorage.getEnvStored() >= currentRecipe.envUsed()) {
+//                    envStorage.setEnvStored(envStorage.getEnvStored() - currentRecipe.envUsed());
+//                    progress = 1;
+//                }
+
+                progress = 1;
             }
 
         }
@@ -138,7 +186,13 @@ public class EnvCollectorBlockEntity extends BlockEntity {
         getInputItem().setCount(getInputItem().getCount() - 1);
         // Is safe, as hasRecipe already checked
         assert currentRecipe != null;
-        setOutputItem(currentRecipe.assemble(recipeWrapper, level.registryAccess()));
+
+        if (getOutputItem().isEmpty()) {
+            setOutputItem(currentRecipe.assemble(recipeWrapper, level.registryAccess()));
+        } else {
+            getOutputItem().setCount(getOutputItem().getCount() + 1);
+        }
+
     }
 
     private boolean hasRecipe(Level level) {
@@ -156,4 +210,31 @@ public class EnvCollectorBlockEntity extends BlockEntity {
         }
 
     }
+
+    @Nullable
+    @Override
+    public Packet<ClientGamePacketListener> getUpdatePacket() {
+        return ClientboundBlockEntityDataPacket.create(this);
+    }
+
+    @Override
+    public @NotNull CompoundTag getUpdateTag(HolderLookup.@NotNull Provider pRegistries) {
+        return saveWithoutMetadata(pRegistries);
+    }
+
+    @Override
+    public void onDataPacket(@NotNull Connection net, @NotNull ClientboundBlockEntityDataPacket pkt, HolderLookup.@NotNull Provider lookupProvider) {
+        super.onDataPacket(net, pkt, lookupProvider);
+    }
+
+    @Override
+    public @NotNull Component getDisplayName() {
+        return Component.translatable("screen.environmenttech.env_collector");
+    }
+
+    @Nullable
+    @Override
+    public AbstractContainerMenu createMenu(int pContainerId, @NotNull Inventory pPlayerInventory, @NotNull Player pPlayer) {
+        return new EnvCollectorMenu(pContainerId, pPlayer, this, data);
+    }
 }
diff --git a/src/main/java/robaertschi/environmenttech/menu/ETMenus.java b/src/main/java/robaertschi/environmenttech/menu/ETMenus.java
index d69a805..2cb5a5b 100644
--- a/src/main/java/robaertschi/environmenttech/menu/ETMenus.java
+++ b/src/main/java/robaertschi/environmenttech/menu/ETMenus.java
@@ -13,7 +13,7 @@ public class ETMenus {
     public static final DeferredRegister<MenuType<?>> MENUS = DeferredRegister.create(BuiltInRegistries.MENU, MODID);
 
     public static final DeferredHolder<MenuType<?>, MenuType<EnvCollectorMenu>> ENV_COLLECTOR_MENU = MENUS.register("env_collector", () ->
-            IMenuTypeExtension.create((windowId, inv, data) -> new EnvCollectorMenu(windowId, inv.player, data.readBlockPos())));
+            IMenuTypeExtension.create((windowId, inv, data) -> new EnvCollectorMenu(windowId, inv.player, data)));
 
     public static void init(IEventBus modEventBus) {
         MENUS.register(modEventBus);
diff --git a/src/main/java/robaertschi/environmenttech/menu/EnvCollectorMenu.java b/src/main/java/robaertschi/environmenttech/menu/EnvCollectorMenu.java
index 272e642..2821133 100644
--- a/src/main/java/robaertschi/environmenttech/menu/EnvCollectorMenu.java
+++ b/src/main/java/robaertschi/environmenttech/menu/EnvCollectorMenu.java
@@ -1,13 +1,11 @@
 package robaertschi.environmenttech.menu;
 
 import net.minecraft.core.BlockPos;
+import net.minecraft.network.FriendlyByteBuf;
 import net.minecraft.world.Container;
 import net.minecraft.world.entity.player.Inventory;
 import net.minecraft.world.entity.player.Player;
-import net.minecraft.world.inventory.AbstractContainerMenu;
-import net.minecraft.world.inventory.ContainerLevelAccess;
-import net.minecraft.world.inventory.MenuType;
-import net.minecraft.world.inventory.Slot;
+import net.minecraft.world.inventory.*;
 import net.minecraft.world.item.ItemStack;
 import net.neoforged.neoforge.items.SlotItemHandler;
 import org.jetbrains.annotations.NotNull;
@@ -20,16 +18,30 @@ import static robaertschi.environmenttech.level.block.entity.EnvCollectorBlockEn
 
 public class EnvCollectorMenu extends AbstractContainerMenu {
 
-    private final BlockPos pos;
+    private final EnvCollectorBlockEntity blockEntity;
+    private final ContainerData data;
 
-    public EnvCollectorMenu(int pContainerId, Player player, BlockPos pos) {
+    public EnvCollectorMenu(int pContainerId, Player player, FriendlyByteBuf buf) {
+        this(pContainerId, player, (EnvCollectorBlockEntity) player.level().getBlockEntity(buf.readBlockPos()), new SimpleContainerData(2));
+    }
+
+    public EnvCollectorMenu(int pContainerId, Player player, EnvCollectorBlockEntity blockEntity, ContainerData data) {
         super(ETMenus.ENV_COLLECTOR_MENU.get(), pContainerId);
-        this.pos = pos;
-        if (player.level().getBlockEntity(pos) instanceof EnvCollectorBlockEntity envCollector) {
-            addSlot(new SlotItemHandler(envCollector.getInventory(), 0, 55, 35));
-            addSlot(new SlotItemHandler(envCollector.getInventory(), 1, 114, 33));
-        }
-        layoutPlayerInventorySlots(player.getInventory(), 10, 70);
+        this.blockEntity = blockEntity;
+        this.data = data;
+        addSlot(new SlotItemHandler(blockEntity.getInventory(), 0, 54, 34));
+        addSlot(new SlotItemHandler(blockEntity.getInventory(), 1, 116, 35));
+        layoutPlayerInventorySlots(player.getInventory(), 8, 84);
+
+        addDataSlots(data);
+    }
+
+    public int getProgress() {
+        return data.get(0);
+    }
+
+    public int getMaxProgress() {
+        return data.get(1);
     }
 
     private int addSlotRange(Container playerInventory, int index, int x, int y, int amount, int dx) {
@@ -99,6 +111,6 @@ public class EnvCollectorMenu extends AbstractContainerMenu {
 
     @Override
     public boolean stillValid(@NotNull Player pPlayer) {
-        return stillValid(ContainerLevelAccess.create(pPlayer.level(), pos), pPlayer, ETBlocks.ENV_COLLECTOR_BLOCK.get());
+        return stillValid(ContainerLevelAccess.create(pPlayer.level(), blockEntity.getBlockPos()), pPlayer, ETBlocks.ENV_COLLECTOR_BLOCK.get());
     }
 }
diff --git a/src/main/resources/assets/environmenttech/lang/en_us.json b/src/main/resources/assets/environmenttech/lang/en_us.json
index 48f6a3f..bed998f 100644
--- a/src/main/resources/assets/environmenttech/lang/en_us.json
+++ b/src/main/resources/assets/environmenttech/lang/en_us.json
@@ -2,5 +2,6 @@
   "item.environmenttech.env_detector": "ENV Detector",
   "item.environmenttech.environmental_essence": "Environmental Essence",
 
-  "itemGroup.environmenttech": "Environment Tech"
+  "itemGroup.environmenttech": "Environment Tech",
+  "screen.environmenttech.env_collector": "ENV Collector"
 }
\ No newline at end of file
diff --git a/src/main/resources/assets/environmenttech/textures/gui/component/progress_bar.png b/src/main/resources/assets/environmenttech/textures/gui/component/progress_bar.png
deleted file mode 100644
index 4664b8f..0000000
Binary files a/src/main/resources/assets/environmenttech/textures/gui/component/progress_bar.png and /dev/null differ
diff --git a/src/main/resources/assets/environmenttech/textures/gui/sprites/component/progress_arrow.png b/src/main/resources/assets/environmenttech/textures/gui/sprites/component/progress_arrow.png
new file mode 100644
index 0000000..be4e213
Binary files /dev/null and b/src/main/resources/assets/environmenttech/textures/gui/sprites/component/progress_arrow.png differ