fixes #552

src/server/components/door.js

@@ -126,7 +126,7 @@ define([
 					return;
 
 				if (((key.singleUse) || (this.destroyKey)) && (key.keyId != 'world')) {
-					obj.inventory.destroyItem(key.id);
+					obj.inventory.destroyItem(key.id, 1);
 
 					obj.instance.syncer.queue('onGetMessages', {
 						id: obj.id,

src/server/config/maps/sewer/zone.js

@@ -27,7 +27,8 @@ module.exports = {
 						name: 'Rusted Key',
 						keyId: 'rustedSewer',
 						singleUse: true,
-						sprite: [12, 1]
+						sprite: [12, 1],
+						quantity: 1
 					}]
 				}
 			},
@@ -123,7 +124,7 @@ module.exports = {
 		sewerdoor: {
 			properties: {
 				cpnDoor: {
-					autoClose: 15,
+					autoClose: 171,
 					locked: true,
 					key: 'rustedSewer',
 					destroyKey: true