I have about 4 acres of grass, I bought a Dixie Chopper 2250 magnum and it handles the yard well. I have nothing but hills...very little flat area. The thing is a TANK...
Rainwater is best, WHEN it rains....My rain barrel is near empty right now....Rain forecast for Friday....I wonder if plumbing the top barrel to fill from the bottom might put too much stress on the pump...That's a lot of weight above the outlet...I think it would be much less stress on the pump...
Man, these are SO cool....Inlay the ODT with a color(paint?) like silver or gold....I'm going to have to ask to buy one from you when you get it all worked out. I'd better buy two, because I know damn well I'll lose one...
I believe spring pressure and speed of the cup will overcome the magnet...But if you lift straight off, relieving spring pressure, it might work. Same with just a round indent that the cup fits in...Might have to incorporate a "ramp" into the indent for reassembly...
Pretty cool...You're thinking outside the box.....How about making one with an indent in it to capture the spring cup when fully twisted...Million dollar Idea for free....