diff --git a/tcl/mango.config b/tcl/mango.config
index b13f896..04f2f05 100644
--- a/tcl/mango.config
+++ b/tcl/mango.config
@@ -11,6 +11,10 @@ GraphAdd temp.main.raw Ohm R
 # levelmeter
 makeCCU4 mango he
 
+hefill minfillminutes 1
+hefill maxfillminutes 10
+hefill undershoot 50
+
 cc hts 40
 cc htf 10
 cc hfu 200