diff --git a/common/buildcraft/factory/TilePump.java b/common/buildcraft/factory/TilePump.java
index cf5654ab..53b58313 100644
--- a/common/buildcraft/factory/TilePump.java
+++ b/common/buildcraft/factory/TilePump.java
@@ -88,8 +88,8 @@ public class TilePump extends TileBuildCraft implements IMachine, IPowerReceptor
 			return;
 		}
 
-//		if (worldObj.getWorldTime() % 4 != 0)
-//			return;
+		if (worldObj.getWorldTime() % 4 != 0)
+			return;
 
 		BlockIndex index = getNextIndexToPump(false);