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re: Why can't S&WB get the pumps to run?

Posted on 6/18/26 at 4:41 pm to
Posted by Joshjrn
Baton Rouge
Member since Dec 2008
33005 posts
Posted on 6/18/26 at 4:41 pm to
quote:

Ah, read the "that" as something different. 3 inches of rain is outside the design already.

Yeah, it was somewhat oddly worded, but a rough translation would be: “Had we gotten 9 inches, we likely would have been fricked anyway, but we would have been uber fricked if we got 9 inches and the pumps failed. Fortunately, we only got 3 inches, so even with the pump failures, it wasn’t that bad.”
Posted by mchias1
Member since Dec 2009
988 posts
Posted on 6/18/26 at 4:41 pm to
The multi pump allows for cycling the pumps so 1 pump is not always run. You can also use more or less pumps depending on the demand along with varying each pumps speed.
Posted by THRILLHO
Old Metairie near Cleary
Member since Apr 2006
50459 posts
Posted on 6/18/26 at 4:55 pm to
quote:

Not sure they are VFDs. They just convert from 60 to 25 for the older pumps.



The difference between those two possibilities is pretty much exclusive to programming.

Either way, you need a rectifier (a series of diodes + capacitors that convert AC to DC) followed by an inverter (transistors controlled by low voltage programming to convert DC to AC). I don't see the benefit in equipment that converts 60hz to exclusively 25hz given that it's fairly easy to include 1-24hz, but I'm not familiar with how these old arse pump motors work.
Posted by White Bear
Homeless
Member since Jul 2014
17766 posts
Posted on 6/18/26 at 5:08 pm to
quote:

mchias1
Posted by LivingstonLaw
Livingston County
Member since Jul 2021
3378 posts
Posted on 6/18/26 at 6:34 pm to
Sex Rooms

Payroll fraud and a ‘secret sex room’: Troubling allegations at New Orleans S&WB

quote:

In 2021, a filter gallery employee filed a public whistleblower complaint that accused managers of using taxpayer dollars to build a “secret room” inside the Carrollton plant where a select number of employees would bring people to sleep with both on and off their shift. Verite interviewed two current employees and one former worker from the Carrollton Plant, who spoke on the condition of anonymity for fear of retaliation. In their interviews with Verite, they confirmed the existence of what one employee described as a “secret sex room.” One employee provided a video of it, showing couches, a refrigerator, a microwave, a TV and a shelf full of framed photos of nude women. The anonymous workers said that more baffling than the allegations is the lack of a strong response from the Sewerage & Water Board. “Ain't nothing being done about it,” one current employee said. “And if you do report anything, they tell you that you need to worry about yourself, don't worry about nobody else.” All the employees who spoke to Verite said the problems in their office got worse as Ware was promoted to higher positions, and said he was one of the central people driving the troubling workplace culture.




This post was edited on 6/18/26 at 6:36 pm
Posted by Cage Fighter Trainee
Member since Aug 2024
313 posts
Posted on 6/18/26 at 6:34 pm to
quote:

On these size pumps you needs VFDs. If you don't you'd brown out the neighbors when motors are switched to line feed. The VFDs help the pumps start slowly reducing the inrush current. Also they can vary the pump speeds as the rain rate varies. Say you have 1" of rain you can turn one pump on at 50% power. You get 2" you go up to 100% or start a 2nd pump at 50%.


Posted by kayjay
Baton Rouge
Member since Dec 2007
571 posts
Posted on 6/18/26 at 7:13 pm to
Next on the list after they fix the pot holes in the street.
Posted by TheHarahanian
Actually not Harahan as of 6/2023
Member since May 2017
24041 posts
Posted on 6/18/26 at 7:35 pm to
I’m going to guess that the budget for regular testing and preventive maintenance is no more than 3 dollars. And the motivation of the employees to do those things is worth even less.
This post was edited on 6/18/26 at 7:36 pm
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