Water Shuttle Operations

Topic: Water Shuttle Operations Teaching and Learning Domain: Cognitive Time Required: 2 hours Materials: Appropriate visuals and chalkboard or easel pad References: IFSTA Pumping Apparatus Driver/Operator (1st ed.), Chapter 14...


       a. Commercial or homemade clamps or fill spouts available

       b. Jurisdictions choose to tie section of hard intake hose to portable tank and connect fill lines to it

       c. Any method suitable as long as firefighters not required to manually hold lines

  11. Most efficient method of unloading tankers to dump water into portable tanks through gravity or

        jet dump

      a. Dumping allows tankers to deliver water rapidly and get back on road

      b. Gravity dumps employ large diameter valves and pressure created by height of water column in

          tank to move water

  12. Actual amount of flow through dump valve dependent on design and size of dump valve, baffling

        in tank, and venting capability of tank

        a. Baffles sufficiently sized openings to allow free water movement at bottom of tank and air

            movement at top during rapid filling or unloading

        b. Most desirable to dump off either side and off rear of the tanker

  13. Most efficient method for operating dump site to have tankers dump loads into one or more

        portable water tanks

  14. Simplest form of dump site operation is single portable water tank

        a. Tankers dump water into tank from which dump site pumper drafting

        b. Single portable tank works on fires that require relatively low overall flow rates (less than 300

            gpm)

        c. Portable tank and dump site pumper positioned so easy in and out access allowed for tankers

            dumping into tank

  15. Most common style of portable water tank folding type

        a. Tank removed from storage position on apparatus in same manner as ground ladder

        b. Carried to deployment position and unfolded

        c. Portable tank drains tucked inside tank to prevent leakage or dislodging

        d. Some departments choose to place salvage cover on ground beneath where tank deployed

  16. Regardless of style of portable water tank used, recommended that tank have capacity at least

        500 gallons larger than capacity of tank on apparatus carrying it

  17. Dump site pumper should have low-level strainer attached to hard intake hose

        a. Allows continuous drafting ability down to point where only about 2 inches of water left in tank

        b. Low-level strainers designed for use in portable tanks commercially available or homemade

  18. Once tank deployed, first tanker may dump water

        a. Dump site spotter or dump site officer should wave and guide tanker into position

        b. Adequate guidance given to assure tanker driver that dump valve properly aligned with tank

        c. When tanker in position, dump valve opened, and water flows into portable tank

        d. Once level of water in portable tank sufficient for drafting, dump site pumper should prime

            pump and start water flowing

        e. Recommended that dump site pumper flow line back into portable tank to ensure prime not lost

           when discharge lines shut down

  19. Once first tanker emptied contents into portable tank, immediately proceed toward fill site to

        reload

        a. If space available in portable tank, next tanker brought into position and water dumped into

            portable tank until filled

        b. If second tanker not able to empty entire load before portable tank full, should remain in

            position and empty tank when room becomes available

        c. Additional tankers staged and ready to proceed to portable tank as soon as water needed to

            refill tank

  20. Incidents that require flow rates in excess of 300 gpm best served by multiple portable tank dump

        site operation

        a. Number of portable tanks used at dump site limited only by number of tanks and amount of