Beananimal/ Herbie Hybrid Observation - Help?

[Madmak]

There is also quite a difference in start up noise and duration between the Herbie and Bean Animal. A Bean Animal typically balances itself and purges all the air out in under a minute, Herbies generally take a bit longer. This is always a noisy process.

A full siphon drain carries the maximum amount of water possible. With the downturned elbow up top in the overflow everything is silent. Open pipes are not silent. The secondary drain is essentially an open pipe due to the vent. You tune the main siphon to take 99% of the return pump's water, from the down turned elbow to the submerged bottom exit. This lets 1% of the water down the secondary which is near silent as the only place for noise to escape is through the vent. When a blockage occurs in the main siphon the water level in the overflow rises. When it reaches and submerges the vent line it turns the secondary in to a full siphon and quickly drains the overflow. Very safe backup system. The third pipe is just an emergency drain meant to stay above the maximum overflow water line and dry at all times. It is only used if there is a blockage is both the primary and secondary drains.

The sanitary Ts are not required, normal Ts work just fine. Your tank is drilled through the bottom do no Ts are needed for Herbie or Bean Animal styles. The Ts in a Bean Animal are also there to provide access to clean the pipes occasionally. Herbie style drains are quiet and safe, Bean Animal Style drains are quieter and safer.

IMO a Bean Animal style drain on an external coast to coast overflow can't be beat for performance, safety, or noise level.

[justincgdick]

The drain on the left is under water, running at full syphon. It's completely silent. What's the point of the tees in the Beananimal and what does it do to make the system more quiet than mine?

The second drain is open, yes, but in the pic the system is balanced and no water is even going down it. Normally it would have a trickle, but it just so happened to balance that way. The only thing the beananimal does different is turn the opening down and use an airline to flush the overflow if the water level gets too high during a plugged main drain. The water plugs the airline and causes the drain to flush. If my main drain plugs the water level rises and flows down the second drain as a durso. If the water rises too high it flushes too as it transitions to a full syphon.

So is the only real differences are that mine will make noise from the slight trickle in the second pipe and mine is noisy IF the main drain is clogged and the secondary is acting as an open standpipe drain? I suppose the Beananimal would be silent when that is happening, but I can't see how that's a good thing. You could have a clogged main drain and not notice while mine would be loud as heck as it sucks air.

[gregzz4]

I'm not clear on where you are going with this ...
Maybe I'm just tired, but I can't tell why you posted

Are you questioning the usage / setup of the Bean / Herbie, or are you just trying to understand how your own unit is working ?

There are Huge amounts of threads Online where you can discuss how the Bean and Herbie overflows work

So, are you looking for help, or are you posting 'cause you don't like it ?

Sorry if I don't catch the meaning of your original post, but I don't see what the problem is when you first posted that it works just fine .....