Overflow flow and noise reduction

[Gerryd]

Hi all,

I do not doubt the accuracy of Bio's data or his reponse. I was simply trying to relate that to OTHER web info that I have seen on many other sites. It just SEEMS like an awful lot of water, is all.

I am much too stupid to do the math and understand basic physics, and is why I asked for assistance in the first place.

I am trying to gain more knowledge. I have no interest in defending incorrect data sources.

Bio, you should know me better than that by now.....

Thanks again to all.

[Biollante]

Hi Gerry,



If I misunderstood

“I am still not sure I buy that even at fulll siphon that a 1"{ pipe will flow 2k gph..I will do more research on this as I am really confused now lol”

I certainly apologize I took it as your preference of your internet source over published data and basic arithmetic.



I know the empirically derived Hazen-Williams equation has no solid theoretical foundation. Yet the Darcy-Weisbach formula, using the Moody Diagram to estimate friction coefficients, which is no-doubt more accurate, still does not contradict Hazen-Williams equation.


The advantage I see with the Hazen-Williams equation is that we can easily derive the equation. You can actually rough up the inside of the pipe, see significant flow reductions, and calculate a new friction coefficient.


My experience is like that of jcgd, when operating at significantly less than maximum flow rates the open-channel does not necessarily carry water. I have observed that it is a good idea to adjust the siphon low enough run some water through the open-channel, mainly for emergencies.

I have found that running a brush through the standpipes every month or so, mark the ball valve on the siphon.

I also have no idea as to why Bean Animal uses ball (or any) valves on the open-channel and emergency standpipes.

Published values for various types of pipe are readily available.

At any rate there is no point in my continued participation, I stand by my observations and calculations.


Good luck,

Biollante

[Gerryd]

Hi Bio,

My apologies again.

I meant to research the places I had seen the 500-600 gph number, so you could see the SOURCE of my confusion.

I never doubted what you said, but when you think for years now as I have 500-600, and then you say, no Gerry, it 3-4 TIMES that amount, it is confusing at first.

I am not intelligent enough on the subject to start with, so how could I find fault with your answer?

Hope this sheds some light on previous replies????

Sorry again....

[Biollante]

Hi Gerry,

I am just an agitated old potted-plant… running behind schedule.

The only other thing I would say is I think it is better to operate toward the middle of the operating envelope, even if you can operate at 2000-gph on 1” standpipes, I recommend 1½”, to leave some room for error.

It really does work astoundingly well, now I really am out of stuff to say about the Herbie or Bean Animal overflow arrangement.

Biollante