I have yet to order my overflow...

[mark]

take a look at Bignose's thread, clear picture of Herbie, just image a couple of inches of water over the bulkhead without the pipe if running.

[spoot]

traco, the "overflow" box that nazerine was reffering is not a "siphon overflow box". Nazerine is talking about a glass box, siliconed into the tank around that drilled hole.

[traco]

Ah, I see .. went to the other thread linked and now know what you were talking about. Thanks.