Tigahboy Posted October 14, 2005 Share Posted October 14, 2005 Just finished the 3 I'm most familiar w/ (i.e. have made/used for my own tanks). hope it helps... I'll try to do a breakdown of pros and cons of each overflow type as well. After I rest a lil tho. EDIT - I am adding a diagram for the Herbie overflow since wombat was so kind enough to contribute them to this thread. Herbie Overflow Diagrams courtesy of Matt Wandell (wombat) You may add either a strainer at the top of the standpipes or an elbow. I've seen both. Some even add a durso for the higher (secondary) standpipe. But the main elements of a Herbie include a lower, primary standpipe with a gate valve to control the water level in the overflow box and a higher, secondary standpipe. There are discussions about the Herbie throughout this thread, please do a search for them within this thread for more information. 1 Quote Link to comment
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