This morning just after 1030 the Dover Fire Department was dispatched to 10 Huntley Circle for a working residential fire. Engine 41-1 was enroute to station 43 for a prearranged standby and made the response. Upon arrival of 41-1, command requested a second alarm due to water supply issues and a large amount of fire. Crews from 41-1 performed ventilation on the roof and assisted with pulling walls and ceilings on the first floor. The crew from engine 41-3 performed a primary and secondary search with negative results. Crews remained on scene for just over an hour and a half.