Herbie style overflow

[JDigital]

Herbie should just be 2 straight stand pipe.. the emergency being taller than the main drain.. the main drain should be full submerged under water.

(for some reason it didn't upload vertically.. but u get the idea...

[Chad]

Ok, i will get photos tomorrow.. I did not make it vertical through the bottom.. I did it through the side. I didn't read anything that had said I could only do it completely vertically. There are atleast 2 elbows in it.

[fkshiu]

Hmm, that's interesting. I've got a 90 and a 45 degree elbow on my Herbie main drain and it has never had any difficulty re-starting. A Herbie is completely gravity-based so it's hard to imagine a situation where one would not re-start as long as water was flowing downwards.

What sized pipe are you using? And how much flow do you have going through the overflow? Perhaps with narrow pipes and low flow the valve could be closed enough such that some slime or gunk creates a blockage???

[mark]

with the down turned elbow, you doing this style?

[Chad]

I am not doing Beananimal's style. The pipe I am using is 3/4" and the flow is less than 200 gph. So I am not sure why it is not restarting.. unless the air is being trapped too fast? I don't know how to solve this.. and at this point I do not want to redo everything. There is definitely no slime or gunk in it because this is all brand new piping.

Pics coming up.

[Chad]

Herbie-Drain-1.jpg

Herbie-Drain-2.jpg

Herbie-Drain-3.jpg

[sphelps]

drill a small hole (1/8") in the top of the elbow inside the oveflow on the main drain. The main problem is that the main drain isn't low enough and enough head pressure isn't building up to push the air out of the elbow.