ROCKY HILL FIRE DEPARTMENT

 

STANDARD OPERATING GUIDELINES

 

2 STAGE HIGH VOLUME HYDRANTS

 

 

 

Purpose:            This procedure will ensure a proper water supply for firefighting in the

                        2nd Stage High Service Area.

 

Note:               The water main from 41 Pebblebrook Road to Boulder Drive (all) and

                        including Vexation Hill Drive (all) are separate from the other water

                        mains servicing the town.

 

                        These water mains are fed from the Vexation Hill storage tanks by a 500

                        g.p.m. pump.  The pressure in the mains can be as high as 56 p.s.i.

 

                        To boost the water supply, it is necessary to pump into this system from

                        an outside source.

 

                        All of the High Service Area hydrants are painted with a green top to

                        Identify them as a low g.p.m. source.

 

                        At 41 Pebblebrook Road there are two hydrants, side by side.  When viewed

                        from the street, the hydrant on the right is a regular hydrant that is supplied

                        by gravity pressure like all other areas in town.  The hydrant on the left is

                        part of the 2nd Stage High Service Area and is limited to 500 g.p.m.

 

                        To boost the water supply in the High Service Area, it is necessary to draw

                        water from the gravity hydrant and pump it into the High Service Area hydrant.

 

Scope:              This applies to water supply operations in the Pebblebrook Rd./Boulder Drive/

                        Vexation Hill Drive, 2nd Stage High Service Area.

 

Procedure:       

                        *For all fire calls in the Pebblebrook Road/Boulder Drive area, the second

                          arriving Company shall respond with an Engine to 41 Pebblebrook Road.

                        *The Engine shall connect with soft suction to the hydrant on the right

                          (Yellow top, gravity hydrant) to draw water.

                        *The Engine shall then use 5”hose and connect from its 5” discharge to the

                          4 ½” connection of the High Service Hydrant (Green top).

                        *The gravity hydrant shall be charged.

 

 

                        *The pump shall now be flushed to prevent contaminants from being introduced

                          into the public water supply.

                        *The 5” discharge line shall now be charged.

                        *The High Service Area Hydrant is then opened.

                        *Pump pressure shall be brought to a maximum of 100 p.s.i.

 

                        Fire Department tests have proven that even with gravity – 2nd stage pumping

                        only a maximum of 500 g.p.m. is available in this area.