diff --git a/modules/rhizo_base/files/bin/migrate-hlr.sh b/modules/rhizo_base/files/bin/migrate-hlr.sh
index f7eef46..57b6c29 100755
--- a/modules/rhizo_base/files/bin/migrate-hlr.sh
+++ b/modules/rhizo_base/files/bin/migrate-hlr.sh
@@ -53,6 +53,13 @@ if [ -f sms.db ]; then
 fi
 
 echo ".clone sms.db" | sqlite3 hlr.sqlite3
+echo "Purging old Subscriber and Equipment records from SMS db..."
+echo "DELETE FROM Equipment" | sqlite3 sms.db
+echo "DELETE FROM EquipmentWatch" | sqlite3 sms.db
+echo "DELETE FROM Subscriber" | sqlite3 sms.db
+echo "VACUMM" | sqlite2 sms.db
+echo "PRAGMA journal_mode=WAL;" | sqlite3 sms.db
+
 /var/rhizomatica/rccn/OsmoSmsQ.py -p ./sms.db -q
 systemctl restart osmo-msc