diff --git a/src/main/java/com/gregtechceu/gtceu/api/machine/trait/NotifiableFluidTank.java b/src/main/java/com/gregtechceu/gtceu/api/machine/trait/NotifiableFluidTank.java
index d94952c8d6..383cac7d5e 100644
--- a/src/main/java/com/gregtechceu/gtceu/api/machine/trait/NotifiableFluidTank.java
+++ b/src/main/java/com/gregtechceu/gtceu/api/machine/trait/NotifiableFluidTank.java
@@ -262,6 +262,18 @@ public boolean isEmpty() {
         return isEmpty;
     }
 
+    private long getSpace(int slot){
+        return this.getStorages()[slot].getCapacity() - this.getStorages()[slot].getFluidAmount();
+    }
+
+    private long getTotalSpace(){
+        long total = 0;
+        for (FluidStorage storage : this.getStorages()) {
+            total += storage.getCapacity() - storage.getFluidAmount();
+        }
+        return total;
+    }
+
     public void exportToNearby(@NotNull Direction... facings) {
         if (isEmpty()) return;
         var level = getMachine().getLevel();