diff --git a/hotel/models/hotel_reservation.py b/hotel/models/hotel_reservation.py
index 0f5c8da8a..881aa9b5e 100644
--- a/hotel/models/hotel_reservation.py
+++ b/hotel/models/hotel_reservation.py
@@ -494,9 +494,8 @@ class HotelReservation(models.Model):
     def _computed_nights(self):
         for res in self:
             if res.checkin and res.checkout:
-                timedelta = fields.Date.from_string(res.checkout) - \
-                            fields.Date.from_string(res.checkin)
-                res.nights = timedelta.days
+                res.nights = (fields.Date.from_string(res.checkout) - \
+                              fields.Date.from_string(res.checkin)).days
 
     @api.model
     def recompute_reservation_totals(self):
@@ -940,17 +939,6 @@ class HotelReservation(models.Model):
                 })
         return res
 
-    # @api.multi
-    # def uos_change(self, product_uos, product_uos_qty=0, product_id=None):
-    #     '''
-    #     @param self: object pointer
-    #     '''
-    #     # for folio in self:
-    #     #     line = folio.order_line_id
-    #     #     line.uos_change(product_uos, product_uos_qty=0,
-    #     #                     product_id=None)
-    #     return True
-
     # FIXME add room.id to on change after removing inheritance
     @api.onchange('adults', 'children')
     def check_capacity(self):
@@ -963,8 +951,8 @@ class HotelReservation(models.Model):
                     _('%s people do not fit in this room! ;)') % (persons))
 
     @api.onchange('room_type_id')
-    # def on_change_virtual_room_id(self):
     def on_change_room_type_id(self):
+        # import wdb; wdb.set_trace()
         if not self.checkin:
             self.checkin = time.strftime(DEFAULT_SERVER_DATETIME_FORMAT)
         if not self.checkout:
@@ -1013,6 +1001,7 @@ class HotelReservation(models.Model):
         # UTC -> Hotel tz
         tz = self.env['ir.default'].sudo().get('res.config.settings',
                                                'tz_hotel')
+        # import wdb; wdb.set_trace()
         chkin_utc_dt = date_utils.get_datetime(self.checkin)
         chkout_utc_dt = date_utils.get_datetime(self.checkout)
 
@@ -1281,6 +1270,7 @@ class HotelReservation(models.Model):
         Checkout date should be greater than the checkin date.
         3.-Check the reservation dates are not occuped
         """
+        _logger.info('check_dates')
         # chkin_utc_dt = date_utils.get_datetime(self.checkin)
         # chkout_utc_dt = date_utils.get_datetime(self.checkout)
         if self.checkin >= self.checkout:
diff --git a/hotel/models/hotel_room_type.py b/hotel/models/hotel_room_type.py
index 3ab86f464..e86221153 100644
--- a/hotel/models/hotel_room_type.py
+++ b/hotel/models/hotel_room_type.py
@@ -85,8 +85,6 @@ class HotelRoomType(models.Model):
         @param notthis: Array excluding Room Types
         @return: A recordset of free rooms ?
         """
-        # occupied = self.env['hotel.reservation'].get_reservations(dfrom, dto)
-        # rooms_occupied = occupied.mapped('product_id.id')
         reservations = self.env['hotel.reservation'].get_reservations(dfrom, dto)
         reservations_rooms = reservations.mapped('room_id.id')
         free_rooms = self.env['hotel.room'].search([
@@ -94,14 +92,10 @@ class HotelRoomType(models.Model):
             ('id', 'not in', notthis)
         ])
         if room_type_id:
-            # hotel_room_obj = self.env['hotel.room']
             room_type_id = self.env['hotel.room.type'].search([
                 ('id', '=', room_type_id)
             ])
-            # room_categories = virtual_room.room_type_ids.mapped('room_ids.id')
-            # rooms_linked = virtual_room.room_ids | hotel_room_obj.search([
-            #     ('categ_id.id', 'in', room_categories)])
-            # rooms_linked = room_type_id.room_ids
+            # QUESTION What linked represent? Rooms in this type ? 
             rooms_linked = self.room_ids
             free_rooms = free_rooms & rooms_linked
         return free_rooms.sorted(key=lambda r: r.sequence)