Abstract: A base assembly has a major section with an open top, a minor section with a top panel and a cover plate with a down-turned flange. The cover plate is positioned over the major section. Springs between the cover plate and the major section hold the cover plate in an inoperative orientation above the major section and an operative orientation in contact with the major section. A J-shaped tube has a lower end operatively coupled with the minor section and extending upwardly from the top panel. The J-shaped tube has an upper end with a primary sprinkler head positioned over the major section. A water path includes an input coupling on the major section for receiving water from a hose. The water path includes an output coupling on the top panel for removably receiving the lower end of the J-shaped tube.