--- a/pkg/imports/gm.go	Thu Dec 20 12:50:37 2018 +0100
+++ b/pkg/imports/gm.go	Thu Dec 20 13:19:54 2018 +0100
@@ -194,9 +194,9 @@
 	}
 
 	if resp.Result_message == nil {
-		err := errors.New("No gauge measurements found")
+		err := errors.New("no gauge measurements found")
 		for i, e := range resp.Result_error {
-			feedback.Error("%d: %v", i, string(*e))
+			feedback.Error("%d: %v", i, e)
 		}
 		return nil, err
 	}
@@ -221,11 +221,12 @@
 		feedback.Info("Found %d gauges with measurements", len(msg.Wrm))
 		for _, wrm := range msg.Wrm {
 			currIsrs, err := models.IsrsFromString(string(*wrm.Geo_object.Id))
+			if err != nil {
+				feedback.Warn("Invalid ISRS code %v", err)
+				continue
+			}
 			for _, measure := range wrm.Measure {
-				isWaterlevel := false
-				if *measure.Measure_code == nts.Measure_code_enumWAL {
-					isWaterlevel = true
-				}
+				isWaterlevel := *measure.Measure_code == nts.Measure_code_enumWAL
 				err = insertStmt.QueryRowContext(
 					ctx,
 					currIsrs.CountryCode,
@@ -248,8 +249,9 @@
 				if err != nil {
 					return nil, err
 				}
-				feedback.Info("Inserted '%s'", currIsrs)
 			}
+			feedback.Info("Inserted %d measurements for %s",
+				len(wrm.Measure), currIsrs)
 			gids = append(gids, currIsrs.String())
 		}
 	}

--- a/pkg/models/gauge.go	Thu Dec 20 12:50:37 2018 +0100
+++ b/pkg/models/gauge.go	Thu Dec 20 13:19:54 2018 +0100
@@ -14,6 +14,7 @@
 package models
 
 import (
+	"errors"
 	"fmt"
 	"strconv"
 	"time"
@@ -43,7 +44,7 @@
 // IsrsFromString converts string representation of isrs code to type Isrs
 func IsrsFromString(isrsCode string) (*Isrs, error) {
 	if len(isrsCode) < 20 {
-		return nil, fmt.Errorf("to short")
+		return nil, errors.New("ISRS code too short")
 	}
 	hm, err := strconv.Atoi(isrsCode[15:20])
 	if err != nil {
@@ -59,7 +60,7 @@
 	return &isrs, nil
 }
 
-// ToString creates a isrs code string from Isrs
+// String creates a isrs code string from Isrs
 func (isrs *Isrs) String() string {
 	return fmt.Sprintf("%s%s%s%s%05d",
 		isrs.CountryCode,