Kirk Allen's Page

Any chance your coming to FDIC?

Shoot me a good address and I will get you a couple inline pressure gauges to use.

I place one in the preconnect and the other at the inlet of the nozzle. Bring your static pressure up to 100psi and make sure all the gauges on the panel and those installed are reading within 5psi. We commonly see panel gauges way off because they never get tested so we never know when they're off.

Then when flowing water, assuming your pumping 150 on the #1 discharge. If the gauge in the preconnect reads 120, then your losing 30psi of loss before the pressure even gets to the hose.

Next read the pressure at the nozzle. If it reads 100 psi, then you now know the "measured" loss in the hose, which for this crude example, is 20psi of loss, yet most folks would take the discharge pressure of 150 and subrtract the nozzle pressure and insist the hose FL is 50 instead of using the actual hose inlet pressure of 120. They just fail to take into account the plumbing.

Remeber that as the flow goes up, so too with the FL, expenentialy.

你有一辆卡车四周规模?任何的地方a truck scale might let you put the pumper on the scale, weigh it full then flow water for a given time, then do the math on the weight after flowing. Its crude but it will tell you flow. The problem with that is it wont tell you where the problems are.

I feel your pain on no one listening. The FL numbers we see in some brands of hose is criminal. Not even close to the forumlas.

Another option is if you have hydrants in your area you can use city funds to get a flow meter to "TEST" the hydrants. Then once they buy into that you will have a flow meter to use for anything else you want to test.

And the old seet of the pants as to how long it takes to drain the tank with the handline gets you close and I have had some argue that it was one number until they were blue in the face only to confused when I asked how much water was still in the hose, plumping and pump before they shut down the pump? They just dont seem to understand all the variables in between the tank and their nozzles.

Dont get discouraged because even after showing people with flow meters and pressure guages I have been accused of "rigging" the flowmeter to show poor numbers for their stuff.

Its a week position at best but some people just arent open to the truth.

When Bobby Halton was the Training Chief in Albuqerque they were flowing 75 gpm, not 150+ as they thought. What seperates the leaders from the followers in this business is what they do with that kind of information. Chief Halton ended up flow testing EVERYTHING and made changes to ensure they were getting the flows they expected. The followers just ignore the facts. Those are the ones that scare the hell out of me.

Let me know how I can help.

Thanks
Kirk