1 files changed, 7 insertions, 2 deletions
diff --git a/src/main/java/gregtech/api/gui/GT_Container_BasicTank.java b/src/main/java/gregtech/api/gui/GT_Container_BasicTank.java
index 5a0f13051a..e8810c14c0 100644
--- a/src/main/java/gregtech/api/gui/GT_Container_BasicTank.java
+++ b/src/main/java/gregtech/api/gui/GT_Container_BasicTank.java
@@ -22,6 +22,7 @@ import net.minecraftforge.fluids.IFluidContainerItem;
 public class GT_Container_BasicTank extends GT_ContainerMetaTile_Machine {
 
     public int mContent = 0;
+    private int oContent = 0;
 
     public GT_Container_BasicTank(InventoryPlayer aInventoryPlayer, IGregTechTileEntity aTileEntity) {
         super(aInventoryPlayer, aTileEntity);
@@ -212,9 +213,13 @@ public class GT_Container_BasicTank extends GT_ContainerMetaTile_Machine {
             mContent = 0;
         for (Object crafter : this.crafters) {
             ICrafting var1 = (ICrafting) crafter;
-            var1.sendProgressBarUpdate(this, 100, mContent & 65535);
-            var1.sendProgressBarUpdate(this, 101, mContent >>> 16);
+            if (mTimer % 500 == 0 || oContent != mContent) {
+                var1.sendProgressBarUpdate(this, 100, mContent & 65535);
+                var1.sendProgressBarUpdate(this, 101, mContent >>> 16);
+            }
         }
+
+        oContent = mContent;
     }
 
     @Override