I will buy the zoos you frag for the demo.
Re-thinking the auto-top off demo, it would be much easier if i do that demo when I host a meet at my place, otherwise I have to tear apart too many electronics. Are the meets Monthly? I could probably finish up my basement by the end of April
My wife would like the deadline, make me get of my @ss and finish the basement!
I will demo a "new" idea about sand beds - RDSBs - Remote Deep Sand Beds. I will bring in a sample one, and discuss how it works. It is a cheap and potentially very beneficial filtration system.