Next step is to finish installing my hot tub!! My wife derailed the work being put into this system for a bit by getting an early Christmas present
I should have the hot tub in by the weekend, then it's time to get the syphons working. I had enough material kicking around to make one (there's still a pile in the garage I need to go thru to find more), but I don't think I have enough water flowing thru the bell - the syphon wouldn't engage, and the flow was already more than when I will have it filled with media. I tried restricting the intake a bit, but that didn't work. I'll make a bigger gap at the bottom of the bell and see how it works. Once that one's going, I'll put in the media and start growing!!