diff --git a/src/Umbraco.Infrastructure/Persistence/UmbracoDatabaseFactory.cs b/src/Umbraco.Infrastructure/Persistence/UmbracoDatabaseFactory.cs
index 299aff2caab3..fd8bdc026932 100644
--- a/src/Umbraco.Infrastructure/Persistence/UmbracoDatabaseFactory.cs
+++ b/src/Umbraco.Infrastructure/Persistence/UmbracoDatabaseFactory.cs
@@ -6,6 +6,7 @@
 using NPoco;
 using NPoco.FluentMappings;
 using Umbraco.Cms.Core;
+using Umbraco.Cms.Core.Configuration;
 using Umbraco.Cms.Core.Configuration.Models;
 using Umbraco.Cms.Infrastructure.Migrations.Install;
 using Umbraco.Cms.Infrastructure.Persistence.FaultHandling;
@@ -72,21 +73,21 @@ private DbProviderFactory DbProviderFactory
 
         #region Constructors
 
-        /// <summary>
+
+          /// <summary>
         /// Initializes a new instance of the <see cref="UmbracoDatabaseFactory"/>.
         /// </summary>
         /// <remarks>Used by the other ctor and in tests.</remarks>
-        public UmbracoDatabaseFactory(
+          internal UmbracoDatabaseFactory(
             ILogger<UmbracoDatabaseFactory> logger,
             ILoggerFactory loggerFactory,
             IOptions<GlobalSettings> globalSettings,
-            IOptionsMonitor<ConnectionStrings> connectionStrings,
             IMapperCollection mappers,
             IDbProviderFactoryCreator dbProviderFactoryCreator,
             DatabaseSchemaCreatorFactory databaseSchemaCreatorFactory,
-            NPocoMapperCollection npocoMappers)
+            NPocoMapperCollection npocoMappers,
+            string connectionString)
         {
-
             _globalSettings = globalSettings;
             _mappers = mappers ?? throw new ArgumentNullException(nameof(mappers));
             _dbProviderFactoryCreator = dbProviderFactoryCreator  ?? throw new ArgumentNullException(nameof(dbProviderFactoryCreator));
@@ -95,22 +96,40 @@ public UmbracoDatabaseFactory(
             _logger = logger ?? throw new ArgumentNullException(nameof(logger));
             _loggerFactory = loggerFactory;
 
-            var settings = connectionStrings.CurrentValue.UmbracoConnectionString;
-            if (settings == null)
+            if (connectionString is null)
             {
                 logger.LogDebug("Missing connection string, defer configuration.");
                 return; // not configured
             }
 
+            var configConnectionString = new ConfigConnectionString("Custom", connectionString);
             // could as well be <add name="umbracoDbDSN" connectionString="" providerName="" />
             // so need to test the values too
-            if (settings.IsConnectionStringConfigured() == false)
+            if (configConnectionString.IsConnectionStringConfigured() == false)
             {
                 logger.LogDebug("Empty connection string or provider name, defer configuration.");
                 return; // not configured
             }
 
-            Configure(settings.ConnectionString, settings.ProviderName);
+            Configure(configConnectionString.ConnectionString, configConnectionString.ProviderName);
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="UmbracoDatabaseFactory"/>.
+        /// </summary>
+        /// <remarks>Used by the other ctor and in tests.</remarks>
+        public UmbracoDatabaseFactory(
+            ILogger<UmbracoDatabaseFactory> logger,
+            ILoggerFactory loggerFactory,
+            IOptions<GlobalSettings> globalSettings,
+            IOptionsMonitor<ConnectionStrings> connectionStrings,
+            IMapperCollection mappers,
+            IDbProviderFactoryCreator dbProviderFactoryCreator,
+            DatabaseSchemaCreatorFactory databaseSchemaCreatorFactory,
+            NPocoMapperCollection npocoMappers):
+            this(logger, loggerFactory, globalSettings, mappers, dbProviderFactoryCreator, databaseSchemaCreatorFactory, npocoMappers, connectionStrings?.CurrentValue?.UmbracoConnectionString?.ConnectionString)
+        {
+
         }
 
         #endregion
diff --git a/src/Umbraco.Infrastructure/Runtime/SqlMainDomLock.cs b/src/Umbraco.Infrastructure/Runtime/SqlMainDomLock.cs
index 8dee49a07c78..8d1c74b619ad 100644
--- a/src/Umbraco.Infrastructure/Runtime/SqlMainDomLock.cs
+++ b/src/Umbraco.Infrastructure/Runtime/SqlMainDomLock.cs
@@ -62,11 +62,11 @@ public SqlMainDomLock(
                 loggerFactory.CreateLogger<UmbracoDatabaseFactory>(),
                 loggerFactory,
                 _globalSettings,
-                connectionStrings,
                 new MapperCollection(() => Enumerable.Empty<BaseMapper>()),
                 dbProviderFactoryCreator,
                 databaseSchemaCreatorFactory,
-                npocoMappers);
+                npocoMappers,
+                connectionStringName);
             MainDomKey = MainDomKeyPrefix + "-" + (Environment.MachineName + MainDom.GetMainDomId(_hostingEnvironment)).GenerateHash<SHA1>();
         }
 
@@ -88,18 +88,10 @@ public SqlMainDomLock(
             hostingEnvironment,
             databaseSchemaCreatorFactory,
             npocoMappers,
-            Constants.System.UmbracoConnectionName
+            connectionStrings.CurrentValue.UmbracoConnectionString.ConnectionString
             )
         {
 
-                loggerFactory.CreateLogger<UmbracoDatabaseFactory>(),
-                loggerFactory,
-                _globalSettings,
-               connectionStrings,
-               new MapperCollection(() => Enumerable.Empty<BaseMapper>()),
-               dbProviderFactoryCreator,
-               databaseSchemaCreatorFactory,
-               npocoMappers);
         }
 
         public async Task<bool> AcquireLockAsync(int millisecondsTimeout)