diff --git a/src/main/java/com/hbm/inventory/fluid/tank/FluidTank.java b/src/main/java/com/hbm/inventory/fluid/tank/FluidTank.java
index 40172b6bd..09e6448e4 100644
--- a/src/main/java/com/hbm/inventory/fluid/tank/FluidTank.java
+++ b/src/main/java/com/hbm/inventory/fluid/tank/FluidTank.java
@@ -126,6 +126,9 @@ public class FluidTank {
 		
 		if(slots[in] == null)
 			return false;
+
+		if(pressure != 0)
+			return false;
 		
 		int prev = this.getFill();