Index: NVDataMgmt.c
===================================================================
diff -u -r5ced583e4e8cb254ff2b542b6c9bbf65b9e9805f -r794ea0222f39749f893b7b60e8b7a0c24688d233
--- NVDataMgmt.c	(.../NVDataMgmt.c)	(revision 5ced583e4e8cb254ff2b542b6c9bbf65b9e9805f)
+++ NVDataMgmt.c	(.../NVDataMgmt.c)	(revision 794ea0222f39749f893b7b60e8b7a0c24688d233)
@@ -144,7 +144,7 @@
 #define DEFAULT_ACID_COND_US_PER_CM          11645.05F                                                          ///< Record default acid conductivity in uS/cm.
 #define DEFAULT_ACID_BOTTLE_TEMP_C           23.5F                                                              ///< Record default acid bottle temperature in C.
 #define DEFAULT_RSRVR_TEMP_TAU_C_PER_MIN     -0.25F                                                             ///< Reservoir temperature time constant C/min.
-#define DEFAULT_UF_TEMP_TAU_C_PER_MIN        -1.0F                                                              ///< Ultrafilter temperature time constant C/min.
+#define DEFAULT_UF_TEMP_TAU_C_PER_MIN        -0.6F                                                              ///< Ultrafilter temperature time constant C/min.
 #define DEFAULT_UF_VOLUME_ML                 700                                                                ///< Ultrafilter volume in milliliters.
 
 #define DEFAULT_FILL_1251_1_ACID_SNSR_US_PER_CM   0.0F                                                          ///< Fill acid 1251_1 acid sensor conductivity uS/cm.