diff --git a/BauSystem_Main/src/de/steamwar/bausystem/features/testblock/depthcounter/Depth.java b/BauSystem_Main/src/de/steamwar/bausystem/features/testblock/depthcounter/Depth.java
index b8753a34..af7ed51e 100644
--- a/BauSystem_Main/src/de/steamwar/bausystem/features/testblock/depthcounter/Depth.java
+++ b/BauSystem_Main/src/de/steamwar/bausystem/features/testblock/depthcounter/Depth.java
@@ -28,22 +28,26 @@ import org.bukkit.block.Block;
 import org.bukkit.scheduler.BukkitTask;
 import org.bukkit.util.Vector;
 
+import java.util.HashSet;
 import java.util.List;
 import java.util.Set;
 
 public class Depth {
 
+    private static BukkitTask bukkitTask = null;
+
+    private Region region;
     private int tntCount = 1;
     private Vector minVector = null;
     private Vector maxVector = null;
 
     private long lastUpdate = TPSUtils.currentTick.get();
-    private BukkitTask bukkitTask;
 
     public Depth(Region region, List<Block> blocks) {
         if (blocks.isEmpty()) {
             throw new SecurityException();
         }
+        this.region = region;
         blocks.forEach(block -> {
             if (minVector == null) {
                 minVector = DepthCounter.blockVector(block.getLocation().toVector());
@@ -53,29 +57,45 @@ public class Depth {
             }
         });
 
-        bukkitTask = Bukkit.getScheduler().runTaskTimer(BauSystem.getInstance(), () -> {
-            if (TPSUtils.currentTick.get() - lastUpdate > 10) {
-                bukkitTask.cancel();
+        if (bukkitTask == null) {
+            bukkitTask = Bukkit.getScheduler().runTaskTimer(BauSystem.getInstance(), () -> {
+                Set<Depth> toRemove = new HashSet<>();
+                for (Set<Depth> value : DepthCounter.depthMap.values()) {
+                    value.forEach(depth -> {
+                        if (TPSUtils.currentTick.get() - depth.lastUpdate < 10) {
+                            return;
+                        }
 
-                Vector dimensions = maxVector.subtract(minVector);
-                dimensions.setX(Math.abs(dimensions.getX()));
-                dimensions.setY(Math.abs(dimensions.getY()));
-                dimensions.setZ(Math.abs(dimensions.getZ()));
+                        Vector dimensions = depth.maxVector.subtract(depth.minVector);
+                        dimensions.setX(Math.abs(dimensions.getX()));
+                        dimensions.setY(Math.abs(dimensions.getY()));
+                        dimensions.setZ(Math.abs(dimensions.getZ()));
 
-                if (tntCount > 4 && dimensions.getX() != 0 && dimensions.getY() != 0 && dimensions.getZ() != 0) {
-                    RegionUtils.message(region, player -> DepthCounter.getMessage(player, dimensions.getBlockX() + 1, dimensions.getBlockY() + 1, dimensions.getBlockZ() + 1, tntCount));
-                }
+                        if (depth.tntCount > 4 && dimensions.getX() != 0 && dimensions.getY() != 0 && dimensions.getZ() != 0) {
+                            RegionUtils.message(depth.region, player -> DepthCounter.getMessage(player, dimensions.getBlockX() + 1, dimensions.getBlockY() + 1, dimensions.getBlockZ() + 1, depth.tntCount));
+                        }
 
-                Set<Depth> depthSet = DepthCounter.depthMap.get(region);
-                if (depthSet == null) {
-                    return;
+                        Set<Depth> depthSet = DepthCounter.depthMap.get(depth.region);
+                        if (depthSet == null) {
+                            return;
+                        }
+                        toRemove.add(depth);
+                    });
                 }
-                depthSet.remove(this);
-                if (depthSet.isEmpty()) {
-                    DepthCounter.depthMap.remove(region);
+                toRemove.forEach(depth -> {
+                    Set<Depth> depthSet = DepthCounter.depthMap.get(depth.region);
+                    depthSet.remove(depth);
+                    if (depthSet.isEmpty()) {
+                        DepthCounter.depthMap.remove(depth.region);
+                    }
+                });
+
+                if (DepthCounter.depthMap.isEmpty()) {
+                    bukkitTask.cancel();
+                    bukkitTask = null;
                 }
-            }
-        }, 1, 1);
+            }, 2, 2);
+        }
     }
 
     public boolean update(List<Block> blocks) {