Kent: I have set my 2 inch vent pipe at the level of the bottom of my 10 inch sypon pipe going thru the top of the dam. Based on your experience is this too low to allow the sypon action to start? It will not be difficult to raise the 2 inch vent pipe if I need to, but I would like to allow the sypon to reduce the pond level to the bottom of the syphon 10 inch pipe and shut off automatically at that level as the 2 inch allows air into the 10 inch pipe. Your thoughts are appreciated.
Rock Creek
