diff --git a/app.db b/app.db
index 2c686bb..afe0a4d 100644
Binary files a/app.db and b/app.db differ
diff --git a/publish.ps1 b/publish.ps1
index da83308..a92035c 100644
--- a/publish.ps1
+++ b/publish.ps1
@@ -13,7 +13,7 @@ Rename-Item -Path target/digester-$version.jar -NewName "app-$version.jar"
 
 # upload
 scp target/app-$version.jar root@192.168.8.10:/app/
-scp ./app.db root@192.168.8.10:/app/device.db
+# scp ./app.db root@192.168.8.10:/app/device.db
 
 # start
 ssh root:zwsd@192.168.8.10 "killall java"
diff --git a/src/main/java/com/iflytop/digester/deviceinstance/LiquidAdditionInstance.java b/src/main/java/com/iflytop/digester/deviceinstance/LiquidAdditionInstance.java
index 430dc1a..5ac55d1 100644
--- a/src/main/java/com/iflytop/digester/deviceinstance/LiquidAdditionInstance.java
+++ b/src/main/java/com/iflytop/digester/deviceinstance/LiquidAdditionInstance.java
@@ -218,7 +218,7 @@ public class LiquidAdditionInstance {
     // 获取蠕动泵索引
     private List<Integer> getPumpIndexForGroupOutAndIn( String type ) {
         for ( int i=0; i<8; i++ ) {
-            if ( liquids.get(i).type.equals(type) ) {
+            if ( liquids.get(i).type.equals(type) && 0 < liquids.get(i).volume ) {
                 return List.of(i*2, i*2+1);
             }
         }