Great job getting out and flowing! A few notes. Double or triple tapping a hydrant should always be LDH. Your not gaining psi but reducing the friction loss in the 5”. And just check your flows with a pitot gauge at the tips. Again great job getting out and flowing, love to see it boys.
Absolutely! That was a big discussion we had prior to this action. We have been discussing large commercial fire tactics and moving from our current practices to a more progressive approach. Reading the water thieves and moving our department forward! We hope to get more data as we move forward. We appreciate the positivity!
@@BourkeBrothersMafiawater thieves are an amazing resource. Send me a DM or something if you have any questions on big water I would love to go over what you have learned.
So Nick barone, if you reduce the friction on the supply line the intake pressure goes up at the pump. Isn't that "a gain"?. Every PSI increase there is less work for the apparatus and keeps the pump better positioned in it's curve. Great to see FF firefighters out using equipment and learning. I would love to have hydrants 3500 gpm capability!!!
This is in our industrial park area towards a end line. It's on a former auto manufacturing plant. We are fortunate with a great water company in this area of our district !
It happens, in my area 140psi is a tame hydrant and we have some that top 200psi static. We have a hard time not over-pressuring the lines because even at idle we are discharging well above pdp. The pressure will slam the butterflies on the intakes shut when trying to gate down the supply and with pumps being so dependent on throttle governing, when the pressures are too high to start with you can't impart less energy into the water. We will pump in volume to only put the water thru one impeller but you become a giant manifold and are chasing the gates to deal with the fact that you're getting almost static pressure when flowing anything less than 1000gpm so opening and closing lines makes big fluctuations in pressure.
@@alexkitner5356 But what do all the buildings that are served by this water main do to reduce the pressure coming in? You cant have over 100psi serving residential and small businesses. Does the water company have pressure regulators located throughout the city? Obviously this pressure is created by pumps, not water towers, so it seems crazy to maintain such a high pressure. I know there are high pressure water transmission pipelines, for moving huge amounts of water between different locations, but I have never heard of high pressure city distribution mains. Very interesting, thx.
@mrwhoopee66 We are supplied from a system that has tanks on high spots with at least 50psi of head on top of the systems pressure and I don't understand it all but this also supplies homes, how the meters don't blow out of basements i cant say. We were doing some training on one particularly notable plug that i worry is going to blow out the pump packing, we put a screw gate on the 2-1/2 outlet and opened the hydrant- and the gate wouldnt open from the pressure. Its really interesting to operate when you have too much water, we have played with a bunch of solutions and the only really helpful method is just putting a smoothbore on an extra discharge and dump it down a storm drain. Intake pressure relief of the top mount pumps or bleeders left open just dont dump enough pressure. If you're pumping off a hydrant with a regular external intake relief then you better be dressed as the dump is almost always opening. You could run a pair of 2000gpm in tandem on some of these hydrants like we used to do when we had single stage 750s and hard sleeve. Not too bad with a deck gun and two aerials flowing, but a challenge when you're trying to flow a pair of 1-3/4s at 195gpm.
Our tactic would normally to place an engine on the hydrant, but really during this video we wanted to test this hydrants capabilities and matched our models. In reality, we want to place an engine on the hydrant on any case our target water flow would exceed the hydrants capability/ any commercial fire, and then look at getting additional hydrant resources.
Great job getting out and flowing! A few notes. Double or triple tapping a hydrant should always be LDH. Your not gaining psi but reducing the friction loss in the 5”. And just check your flows with a pitot gauge at the tips. Again great job getting out and flowing, love to see it boys.
Absolutely! That was a big discussion we had prior to this action. We have been discussing large commercial fire tactics and moving from our current practices to a more progressive approach. Reading the water thieves and moving our department forward!
We hope to get more data as we move forward. We appreciate the positivity!
@@BourkeBrothersMafiawater thieves are an amazing resource. Send me a DM or something if you have any questions on big water I would love to go over what you have learned.
How about that big kink at the hydrant?
So Nick barone, if you reduce the friction on the supply line the intake pressure goes up at the pump. Isn't that "a gain"?. Every PSI increase there is less work for the apparatus and keeps the pump better positioned in it's curve. Great to see FF firefighters out using equipment and learning. I would love to have hydrants 3500 gpm capability!!!
Where do you find hydrants with 140psi? Does this same water main feed houses in this city?
This is in our industrial park area towards a end line. It's on a former auto manufacturing plant.
We are fortunate with a great water company in this area of our district !
It happens, in my area 140psi is a tame hydrant and we have some that top 200psi static. We have a hard time not over-pressuring the lines because even at idle we are discharging well above pdp. The pressure will slam the butterflies on the intakes shut when trying to gate down the supply and with pumps being so dependent on throttle governing, when the pressures are too high to start with you can't impart less energy into the water. We will pump in volume to only put the water thru one impeller but you become a giant manifold and are chasing the gates to deal with the fact that you're getting almost static pressure when flowing anything less than 1000gpm so opening and closing lines makes big fluctuations in pressure.
@@alexkitner5356 But what do all the buildings that are served by this water main do to reduce the pressure coming in? You cant have over 100psi serving residential and small businesses. Does the water company have pressure regulators located throughout the city? Obviously this pressure is created by pumps, not water towers, so it seems crazy to maintain such a high pressure. I know there are high pressure water transmission pipelines, for moving huge amounts of water between different locations, but I have never heard of high pressure city distribution mains. Very interesting, thx.
@mrwhoopee66 We are supplied from a system that has tanks on high spots with at least 50psi of head on top of the systems pressure and I don't understand it all but this also supplies homes, how the meters don't blow out of basements i cant say. We were doing some training on one particularly notable plug that i worry is going to blow out the pump packing, we put a screw gate on the 2-1/2 outlet and opened the hydrant- and the gate wouldnt open from the pressure. Its really interesting to operate when you have too much water, we have played with a bunch of solutions and the only really helpful method is just putting a smoothbore on an extra discharge and dump it down a storm drain. Intake pressure relief of the top mount pumps or bleeders left open just dont dump enough pressure. If you're pumping off a hydrant with a regular external intake relief then you better be dressed as the dump is almost always opening. You could run a pair of 2000gpm in tandem on some of these hydrants like we used to do when we had single stage 750s and hard sleeve. Not too bad with a deck gun and two aerials flowing, but a challenge when you're trying to flow a pair of 1-3/4s at 195gpm.
At what point would you require another engine pumper?
Our tactic would normally to place an engine on the hydrant, but really during this video we wanted to test this hydrants capabilities and matched our models.
In reality, we want to place an engine on the hydrant on any case our target water flow would exceed the hydrants capability/ any commercial fire, and then look at getting additional hydrant resources.
Ff playing with their hoses... need to be washing that truck
Not a true truck company. Beautiful truck, but this is a giant quint. 🎉😂