can you explain the blue piece ... i know its for starting the syphon right?
i have been tossing around the idea of doing what you did, instead of my PAIN IN THE @$$ overflow box (i will NEVER buy another tank that isnt drilled!)
and i think you convinced me!
my issue is that its a 180g tank, and i am running 900g/h pump, so i think i will use bigger diameter PVC, but other than that i want to use yours (unless you have any suggested changes)
my question was just how to start and keep a syphon?
and will it auto restart in a power outtage?
also, my pleco has a tendency to swim near my overflow now, get too close which breaks the syphon, and thus floods my tank (one time and counting ...) any ideas as to prevent that with your setup?