diff --git a/config/migrations/007_add_tick_delete_hours_settings_column.sql b/config/migrations/007_add_tick_delete_hours_settings_column.sql
new file mode 100644
index 0000000..479bae0
--- /dev/null
+++ b/config/migrations/007_add_tick_delete_hours_settings_column.sql
@@ -0,0 +1,2 @@
+ALTER TABLE settings
+ADD COLUMN tick_delete_hours INTEGER NULL;
\ No newline at end of file
diff --git a/public/index.php b/public/index.php
index 8214dee..eb1a8a0 100644
--- a/public/index.php
+++ b/public/index.php
@@ -42,6 +42,12 @@ if (!$prerequisites->validateApplication()) {
 // Get the working database connection from prerequisites
 $db = $prerequisites->getDatabase();
 
+// Apply any pending database migrations
+if (!$prerequisites->applyMigrations($db)){
+    $prerequisites->generateWebSummary();
+    exit;
+}
+
 // Check if setup is complete (user exists and URL is configured)
 if (!(preg_match('/tkr-setup$/', $path))) {
     try {
diff --git a/src/Controller/AdminController/AdminController.php b/src/Controller/AdminController/AdminController.php
index 91d0fad..05fe63a 100644
--- a/src/Controller/AdminController/AdminController.php
+++ b/src/Controller/AdminController/AdminController.php
@@ -91,6 +91,7 @@ class AdminController extends Controller {
         $itemsPerPage        = (int) ($postData['items_per_page'] ?? 25);
         $strictAccessibility = isset($postData['strict_accessibility']);
         $logLevel            = (int) ($postData['log_level'] ?? 0);
+        $tickDeleteHours     = (int) ($postData['tick_delete_hours'] ?? 1);
 
         // Password
         $password        = $postData['password'] ?? '';
@@ -152,6 +153,7 @@ class AdminController extends Controller {
                 $app['settings']->itemsPerPage = $itemsPerPage;
                 $app['settings']->strictAccessibility = $strictAccessibility;
                 $app['settings']->logLevel = $logLevel;
+                $app['settings']->tickDeleteHours = $tickDeleteHours;
 
                 // Save site settings and reload config from database
                 $app['settings'] = $app['settings']->save();
diff --git a/src/Framework/Prerequisites/Prerequisites.php b/src/Framework/Prerequisites/Prerequisites.php
index 181c945..27b31d9 100644
--- a/src/Framework/Prerequisites/Prerequisites.php
+++ b/src/Framework/Prerequisites/Prerequisites.php
@@ -442,7 +442,7 @@ class Prerequisites {
         }
     }
 
-    private function applyMigrations($db) {
+    public function applyMigrations($db) {
         try {
             $migrator = new Migrator($db);
             $migrator->migrate();
diff --git a/src/Model/SettingsModel/SettingsModel.php b/src/Model/SettingsModel/SettingsModel.php
index a9b714b..2a6bfc7 100644
--- a/src/Model/SettingsModel/SettingsModel.php
+++ b/src/Model/SettingsModel/SettingsModel.php
@@ -12,8 +12,7 @@ class SettingsModel {
     public ?int $cssId = null;
     public bool $strictAccessibility = true;
     public ?int $logLevel = null;
-    // not currently configurable
-    public int $tickDeleteHours = 1;
+    public ?int $tickDeleteHours = null;
 
     public function __construct(private PDO $db) {}
 
@@ -28,7 +27,8 @@ class SettingsModel {
                                    items_per_page,
                                    css_id,
                                    strict_accessibility,
-                                   log_level
+                                   log_level,
+                                   tick_delete_hours
                             FROM settings WHERE id=1");
 
         $row = $stmt->fetch(PDO::FETCH_ASSOC);
@@ -41,7 +41,8 @@ class SettingsModel {
             $c->itemsPerPage = (int) $row['items_per_page'];
             $c->cssId = (int) $row['css_id'];
             $c->strictAccessibility = (bool) $row['strict_accessibility'];
-            $c->logLevel = $row['log_level'];
+            $c->logLevel = (int) ($row['log_level'] ?? 2);
+            $c->tickDeleteHours = (int) ($row['tick_delete_hours'] ?? 1);
         }
 
         return $c;
@@ -51,6 +52,7 @@ class SettingsModel {
         $settingsCount = (int) $this->db->query("SELECT COUNT(*) FROM settings")->fetchColumn();
 
         if ($settingsCount === 0){
+            Log::debug('Initializing settings');
             $stmt = $this->db->prepare("INSERT INTO settings (
                 id,
                 site_title,
@@ -60,10 +62,12 @@ class SettingsModel {
                 items_per_page,
                 css_id,
                 strict_accessibility,
-                log_level
+                log_level,
+                tick_delete_hours
                 )
-                VALUES (1, ?, ?, ?, ?, ?, ?, ?, ?)");
+                VALUES (1, ?, ?, ?, ?, ?, ?, ?, ?, ?)");
         } else {
+            Log::debug('Updating settings');
             $stmt = $this->db->prepare("UPDATE settings SET
                 site_title=?,
                 site_description=?,
@@ -72,10 +76,21 @@ class SettingsModel {
                 items_per_page=?,
                 css_id=?,
                 strict_accessibility=?,
-                log_level=?
+                log_level=?,
+                tick_delete_hours=?
                 WHERE id=1");
         }
 
+        Log::debug("Site title: " . $this->siteTitle);
+        Log::debug("Site description: " . $this->siteDescription);
+        Log::debug("Base URL: " . $this->baseUrl);
+        Log::debug("Base path: " . $this->basePath);
+        Log::debug("Items per page: " . $this->itemsPerPage);
+        Log::debug("CSS ID: " . $this->cssId);
+        Log::debug("Strict accessibility: " . $this->strictAccessibility);
+        Log::debug("Log level: " . $this->logLevel);
+        Log::debug("Tick delete window: " . $this->tickDeleteHours);
+
         $stmt->execute([$this->siteTitle,
                         $this->siteDescription,
                         $this->baseUrl,
@@ -83,7 +98,8 @@ class SettingsModel {
                         $this->itemsPerPage,
                         $this->cssId,
                         $this->strictAccessibility,
-                        $this->logLevel
+                        $this->logLevel,
+                        $this->tickDeleteHours
                     ]);
 
         return $this->get();
diff --git a/templates/partials/admin.php b/templates/partials/admin.php
index 557470b..387ffe0 100644
--- a/templates/partials/admin.php
+++ b/templates/partials/admin.php
@@ -61,13 +61,18 @@
                             name="items_per_page"
                             value="<?= $settings->itemsPerPage ?>" min="1" max="50"
                             required>
+                        <label for="tick_delete_hours">Tick delete window (hours)</label>
+                        <input type="number"
+                            id="tick_delete_hours"
+                            name="tick_delete_hours"
+                            value="<?= ($settings->tickDeleteHours ?? 1) ?>" min="1">
                         <label for="strict_accessibility">Strict accessibility</label>
                         <input type="checkbox"
                                id="strict_accessibility"
                                name="strict_accessibility"
                                value="1"
                                <?php if ($settings->strictAccessibility): ?> checked <?php endif; ?>>
-                        <label for="strict_accessibility">Log Level</label>
+                        <label for="log_level">Log Level</label>
                         <select id="log_level" name="log_level">
                             <option value="1" <?= ($settings->logLevel ?? 2) == 1 ? 'selected' : '' ?>>DEBUG</option>
                             <option value="2" <?= ($settings->logLevel ?? 2) == 2 ? 'selected' : '' ?>>INFO</option>
diff --git a/tests/Controller/AdminController/AdminControllerTest.php b/tests/Controller/AdminController/AdminControllerTest.php
index c47cd83..c6945c5 100644
--- a/tests/Controller/AdminController/AdminControllerTest.php
+++ b/tests/Controller/AdminController/AdminControllerTest.php
@@ -22,6 +22,7 @@ class AdminControllerTest extends TestCase
         $this->settings->baseUrl = 'https://example.com';
         $this->settings->basePath = '/tkr';
         $this->settings->itemsPerPage = 10;
+        $this->settings->tickDeleteHours = 2;
 
         $this->user = new UserModel($this->mockPdo);
         $this->user->username = 'testuser';
@@ -119,7 +120,8 @@ class AdminControllerTest extends TestCase
                 'items_per_page' => 15,
                 'css_id' => null,
                 'strict_accessibility' => true,
-                'log_level' => 2
+                'log_level' => 2,
+                'tick_delete_hours' => 3
             ],
             [
                 'username' => 'newuser',
@@ -153,7 +155,8 @@ class AdminControllerTest extends TestCase
             'base_path' => '/updated',
             'items_per_page' => 15,
             'strict_accessibility' => 'on',
-            'log_level' => 2
+            'log_level' => 2,
+            'tick_delete_hours' => 3
         ];
 
         $result = $controller->saveSettings($postData, false);
@@ -177,7 +180,8 @@ class AdminControllerTest extends TestCase
                 'items_per_page' => 10,
                 'css_id' => null,
                 'strict_accessibility' => true,
-                'log_level' => 2
+                'log_level' => 2,
+                'tick_delete_hours' => 3
             ],
             [
                 'username' => 'testuser',