details on the actuating valve actuator see fig4 the operating valve operator 52 has an operating valve operator flange 55 with holes which align with holes 14 in the body wall 12 when the operating valve operator 52 is in the closed position although fig2 shows the operating valve operator 52 as interacting with a key 51 other embodiments with an operating knob are specifically contemplated a tubular service valve casing 40 is mounted on the hydrant body 30 parallel to the operating valve conduit 50 contained in the service valve casing 40 is a service valve assembly 41 with a first and a second end comprising a service rod operator 42 at the first end a service valve rod 44 and a service valve plunger 46 at the second end for additional details on the service rod assembly see fig3 a reservoir 34 is located at the second ends of the operating valve assembly 53 and the service valve assembly 41 the reservoir 34 has a reservoir front wall 38 with a fluid inlet port 32 with a fluid inlet port seat 33 located on the reservoir front wall 38 a reservoir back wall 37 has a reservoir outlet port 35 in fluid communication with the operating valve conduit 50 flow.