ATTACHMENT G

Date:

Test By:

Time:

Equation 1.1

Where:

Comments:

Nozzle CoefficientDuration of Flow (min)

If hydrant flow tested (462) If hydrant painted (348) If blue(382) If green(383) If orange(384) If red(385) pumper nozzle. If 10 psi drop still not attained, flow multiple hydrants. Provide additional hydrant number and location description in comment area below. Note test procedure requirements in M17 for

City of Tampa Water Department Use

Flow test data entered by: Date entered:

Equation 1.2

16.) Calculate the flow (Total Flow) using Equation 1.1 below.

use of pumper nozzle outlets for flow test if pumper nozzle is utilized.

d = nozzle ID (in)

P = Pitot gauge pressure (psi)

9.) Feel inside hydrant and note the type of nozzle outlet. Refer to Figure 6-3 in M17. Use appropriate Outlet coefficient in Eq. 1.1

10.) Slowly open hydrant valve fully and allow to flow.

17.) Calculate the C.C. Flow using Equation1.2 above.

12.) Open Flow Hydrant slowly until fully open.

13.) Wait for pressure at the residual hydrant to stabilize and record pressure in psi as Residual Pressure.

15.) If residual pressure is not at least 10 psi less than static pressure repeat test while flowing through

Q = 29.83cd (P)

1/2 Q = Discharged Flow c = nozzle coefficient

(Static Pressure - 20) .54

= C.C. Flow (gpm) x Total Flow (gpm) (Static Pressure-Residual Pressure)

.54

Fire Flow Test Documentation Sheet

City Of Tampa Wastewater Department

Flow Hydrant No. Residual Hydrant No.

Location Description:

Flow Hydrant (gpm):

Residual Pressure (psi):

Location Description:

Static Pressure (psi):

C.C. Flow (gpm)

Hydrant Bonnet Painted (Y/N) Paint Color Used

14.) Simultaneously use pitot gauge to measure the flow at the flow hydrant.

8.) Remove hose nozzle cap and measure the inside diameter in inches of the nozzle to the nearest 1/16".

1.) Locate Residual Hydrant. Verify hydrant number and location on the form in spaces provided.

7.) Locate Flow Hydrant. Note hydrant number and location on the form in spaces provided.

18.) If the observed residual pressure is below 40 psi the hydrant color scheme shall be based upon half of the observed flow.

11.) Station one observer at the residual hydrant and one observer at the flow hydrant.

19.) The initial flow hydrant is the hydrant that shall be painted. Paint hydrant barrel and caps yellow. Paint hydrant bonnet the appropriate color based on the calculated flow at 20 psi residual. Use high grade enamel

2.) Flush residual hydrant until water is free of foreign material.

3.) Install nozzle cap fitted with pressure guage.

5.) Close vent and open hydrant valve fully.

4.) Open hydrant valve slowly until all air is vented from hydrant.

6.) Record pressure as Static Pressure