diff --git a/src/main/java/refinedstorage/api/storage/IGroupedStorage.java b/src/main/java/refinedstorage/api/storage/IGroupedStorage.java
index 95f1331ae..c95a7f43d 100755
--- a/src/main/java/refinedstorage/api/storage/IGroupedStorage.java
+++ b/src/main/java/refinedstorage/api/storage/IGroupedStorage.java
@@ -14,12 +14,7 @@ public interface IGroupedStorage {
      * Rebuilds the storages and items for a network. Typically called when a {@link IStorageProvider} is
      * added or removed from the network.
      */
-    void rebuild();
-
-    /**
-     * @return A list of {@link IStorage} connected to this network
-     */
-    List<IStorage> getStorages();
+    void rebuild(List<IStorage> storages);
 
     /**
      * Adds an item to the network. Will merge it with another item if it already exists.
diff --git a/src/main/java/refinedstorage/apiimpl/storage/GroupedStorage.java b/src/main/java/refinedstorage/apiimpl/storage/GroupedStorage.java
index 76bed2b29..0b60c094c 100755
--- a/src/main/java/refinedstorage/apiimpl/storage/GroupedStorage.java
+++ b/src/main/java/refinedstorage/apiimpl/storage/GroupedStorage.java
@@ -6,34 +6,22 @@ import net.minecraft.item.Item;
 import net.minecraft.item.ItemStack;
 import refinedstorage.RefinedStorageUtils;
 import refinedstorage.api.network.INetworkMaster;
-import refinedstorage.api.network.INetworkSlave;
 import refinedstorage.api.storage.IGroupedStorage;
 import refinedstorage.api.storage.IStorage;
-import refinedstorage.api.storage.IStorageProvider;
 
-import java.util.ArrayList;
 import java.util.Collection;
 import java.util.List;
 
 public class GroupedStorage implements IGroupedStorage {
-    private List<IStorage> storages = new ArrayList<IStorage>();
-    private Multimap<Item, ItemStack> stacks = ArrayListMultimap.create();
     private INetworkMaster network;
+    private Multimap<Item, ItemStack> stacks = ArrayListMultimap.create();
 
     public GroupedStorage(INetworkMaster network) {
         this.network = network;
     }
 
     @Override
-    public void rebuild() {
-        storages.clear();
-
-        for (INetworkSlave slave : network.getSlaves()) {
-            if (slave.canUpdate() && slave instanceof IStorageProvider) {
-                ((IStorageProvider) slave).addStorages(storages);
-            }
-        }
-
+    public void rebuild(List<IStorage> storages) {
         stacks.clear();
 
         for (IStorage storage : storages) {
@@ -45,17 +33,14 @@ public class GroupedStorage implements IGroupedStorage {
         network.sendStorageToClient();
     }
 
-    @Override
-    public List<IStorage> getStorages() {
-        return storages;
-    }
-
     @Override
     public void add(ItemStack stack) {
         for (ItemStack otherStack : stacks.get(stack.getItem())) {
             if (RefinedStorageUtils.compareStackNoQuantity(otherStack, stack)) {
                 otherStack.stackSize += stack.stackSize;
 
+                network.sendStorageToClient();
+                
                 return;
             }
         }
diff --git a/src/main/java/refinedstorage/tile/controller/TileController.java b/src/main/java/refinedstorage/tile/controller/TileController.java
index e5ef37443..408d1cbb3 100755
--- a/src/main/java/refinedstorage/tile/controller/TileController.java
+++ b/src/main/java/refinedstorage/tile/controller/TileController.java
@@ -27,6 +27,7 @@ import refinedstorage.api.network.IWirelessGridHandler;
 import refinedstorage.api.storage.CompareFlags;
 import refinedstorage.api.storage.IGroupedStorage;
 import refinedstorage.api.storage.IStorage;
+import refinedstorage.api.storage.IStorageProvider;
 import refinedstorage.apiimpl.autocrafting.BasicCraftingTask;
 import refinedstorage.apiimpl.autocrafting.CraftingPattern;
 import refinedstorage.apiimpl.autocrafting.ProcessingCraftingTask;
@@ -57,6 +58,7 @@ public class TileController extends TileBase implements INetworkMaster, IEnergyR
     private GridHandler gridHandler = new GridHandler(this);
     private WirelessGridHandler wirelessGridHandler = new WirelessGridHandler(this);
 
+    private List<IStorage> storages = new ArrayList<IStorage>();
     private IGroupedStorage storage = new GroupedStorage(this);
 
     private List<INetworkSlave> slaves = new ArrayList<INetworkSlave>();
@@ -338,6 +340,7 @@ public class TileController extends TileBase implements INetworkMaster, IEnergyR
 
     private void updateSlaves() {
         this.energyUsage = 0;
+        this.storages.clear();
         this.patterns.clear();
 
         int range = 0;
@@ -347,6 +350,10 @@ public class TileController extends TileBase implements INetworkMaster, IEnergyR
                 continue;
             }
 
+            if (slave instanceof IStorageProvider) {
+                ((IStorageProvider) slave).addStorages(storages);
+            }
+
             if (slave instanceof TileWirelessTransmitter) {
                 range += ((TileWirelessTransmitter) slave).getRange();
             }
@@ -368,7 +375,7 @@ public class TileController extends TileBase implements INetworkMaster, IEnergyR
 
         wirelessGridHandler.setRange(range);
 
-        Collections.sort(storage.getStorages(), new Comparator<IStorage>() {
+        Collections.sort(storages, new Comparator<IStorage>() {
             @Override
             public int compare(IStorage left, IStorage right) {
                 int leftStored = left.getStored();
@@ -382,7 +389,7 @@ public class TileController extends TileBase implements INetworkMaster, IEnergyR
             }
         });
 
-        Collections.sort(storage.getStorages(), new Comparator<IStorage>() {
+        Collections.sort(storages, new Comparator<IStorage>() {
             @Override
             public int compare(IStorage left, IStorage right) {
                 if (left.getPriority() == right.getPriority()) {
@@ -393,7 +400,7 @@ public class TileController extends TileBase implements INetworkMaster, IEnergyR
             }
         });
 
-        this.storage.rebuild();
+        this.storage.rebuild(storages);
     }
 
     @Override
@@ -416,7 +423,7 @@ public class TileController extends TileBase implements INetworkMaster, IEnergyR
 
     @Override
     public ItemStack push(ItemStack stack, int size, boolean simulate) {
-        if (stack == null || stack.getItem() == null || storage.getStorages().isEmpty()) {
+        if (stack == null || stack.getItem() == null || storages.isEmpty()) {
             return ItemHandlerHelper.copyStackWithSize(stack, size);
         }
 
@@ -424,7 +431,7 @@ public class TileController extends TileBase implements INetworkMaster, IEnergyR
 
         ItemStack remainder = stack;
 
-        for (IStorage storage : this.storage.getStorages()) {
+        for (IStorage storage : storages) {
             remainder = storage.push(remainder, size, simulate);
 
             if (remainder == null) {
@@ -460,7 +467,7 @@ public class TileController extends TileBase implements INetworkMaster, IEnergyR
 
         ItemStack newStack = null;
 
-        for (IStorage storage : this.storage.getStorages()) {
+        for (IStorage storage : storages) {
             ItemStack took = storage.take(stack, requested - received, flags);
 
             if (took != null) {