diff --git a/lib/OpenLayers/Layer/Grid.js b/lib/OpenLayers/Layer/Grid.js
index 47c72fecb9..a0bcfb3c42 100644
--- a/lib/OpenLayers/Layer/Grid.js
+++ b/lib/OpenLayers/Layer/Grid.js
@@ -395,23 +395,6 @@ OpenLayers.Layer.Grid.prototype =
     addTile:function(bounds, position) {
         // Should be implemented by subclasses
     },
-
-    /**
-     * APIMethod: mergeNewParams
-     * Once params have been changed, we will need to re-init our tiles
-     *
-     * Parameters:
-     * newParams - {Object} Hashtable of new params to use
-     */
-    mergeNewParams:function(newArguments) {
-        OpenLayers.Layer.HTTPRequest.prototype.mergeNewParams.apply(this,
-                                                                [newArguments]);
-
-        if (this.map != null) {
-            this._initTiles();
-        }
-    },
-
     
     /**
      * Method: shiftRow
diff --git a/lib/OpenLayers/Layer/HTTPRequest.js b/lib/OpenLayers/Layer/HTTPRequest.js
index 30e6620678..b9d9fa6b29 100644
--- a/lib/OpenLayers/Layer/HTTPRequest.js
+++ b/lib/OpenLayers/Layer/HTTPRequest.js
@@ -115,6 +115,7 @@ OpenLayers.Layer.HTTPRequest.prototype =
      */
     mergeNewParams:function(newParams) {
         this.params = OpenLayers.Util.extend(this.params, newParams);
+        this.redraw();
     },
     
     /**
diff --git a/lib/OpenLayers/Layer/MapServer/Untiled.js b/lib/OpenLayers/Layer/MapServer/Untiled.js
index eea7d050e1..c308244d7c 100644
--- a/lib/OpenLayers/Layer/MapServer/Untiled.js
+++ b/lib/OpenLayers/Layer/MapServer/Untiled.js
@@ -243,20 +243,7 @@ OpenLayers.Layer.MapServer.Untiled.prototype =
         OpenLayers.Layer.HTTPRequest.prototype.setUrl.apply(this, arguments);
         this.redraw();
     },
-
-    /** 
-     * APIMethod: mergeNewParams
-     * Once HTTPRequest has updated new params, reload the image div
-     *
-     * Parameters:
-     * newParams - {Object} 
-     */
-    mergeNewParams:function(newParams) {
-        OpenLayers.Layer.HTTPRequest.prototype.mergeNewParams.apply(this, 
-                                                                 [newParams]);
-        this.redraw();
-    },
-    
+   
     /** 
     * APIMethod: getFullRequestString
     * combine the layer's url with its params and these newParams. 
diff --git a/lib/OpenLayers/Layer/WFS.js b/lib/OpenLayers/Layer/WFS.js
index 2295e84639..fac98c8c3a 100644
--- a/lib/OpenLayers/Layer/WFS.js
+++ b/lib/OpenLayers/Layer/WFS.js
@@ -248,8 +248,6 @@ OpenLayers.Layer.WFS.prototype =
         var newArguments = [upperParams];
         OpenLayers.Layer.HTTPRequest.prototype.mergeNewParams.apply(this, 
                                                                  newArguments);
-        //redraw
-        this.moveTo(null, true);
     },
 
     /**
diff --git a/lib/OpenLayers/Layer/WMS/Untiled.js b/lib/OpenLayers/Layer/WMS/Untiled.js
index dc65c8b56a..a49270410a 100644
--- a/lib/OpenLayers/Layer/WMS/Untiled.js
+++ b/lib/OpenLayers/Layer/WMS/Untiled.js
@@ -259,21 +259,6 @@ OpenLayers.Layer.WMS.Untiled.prototype =
         OpenLayers.Layer.HTTPRequest.prototype.setUrl.apply(this, arguments);
         this.redraw();
     },
-
-    /**
-     * APIMethod: mergeNewParams
-     * Once HTTPRequest has updated new params, reload the image div
-     *
-     * Parameters:
-     * newParams - {Object} 
-     */
-    mergeNewParams:function(newParams) {
-        var upperParams = OpenLayers.Util.upperCaseObject(newParams);
-        var newArguments = [upperParams];
-        OpenLayers.Layer.HTTPRequest.prototype.mergeNewParams.apply(this, 
-                                                                 newArguments);
-        this.redraw();
-    },
     
     /** 
     * APIMethod: getFullRequestString
diff --git a/tests/Layer/test_HTTPRequest.html b/tests/Layer/test_HTTPRequest.html
index 3a8f23d90f..25798c9f6e 100644
--- a/tests/Layer/test_HTTPRequest.html
+++ b/tests/Layer/test_HTTPRequest.html
@@ -65,7 +65,7 @@
     }
 
     function test_05_Layer_HTTPRequest_mergeNewParams (t) {
-        t.plan( 3 );
+        t.plan( 4 );
 
         layer = new OpenLayers.Layer.HTTPRequest(name, url, params, options);
         
@@ -80,6 +80,11 @@
         newParams.chickpeas = 151;
 
         t.eq( layer.params.chickpeas, "image/png", "mergeNewParams() makes clean copy of hash");
+        
+        layer.redraw = function() {
+            t.ok(true, "layer.mergeNewParams calls layer.redraw");
+        }
+        layer.mergeNewParams();
 
 
     }