If you can’t explain it simply, you don’t understand it.

 — Albert Einstein

The big issue I was having with the Solenoids was too much pressure. So while on a trip to Sudbury my Stepfather and I redesigned it. Well, I just told him what I was thinking of doing, and he came up with a much simpler way of doing it.

It’s a good thing too, because I’ve easily broke the budget on this project! So this design uses a cap from a sewage pipe, and some garden hose adaptors. No soldering required. The pressure in the system is regulated by the height of the pipe and how much water is pumped in. When the solenoids are open and the water is draining a plunger falls, triggering an aquarium pump to refill the container. It stops when the plunger rises past a certain point.

Yes, this thing is now an electronically controlled toilet.

Off to buy some more parts, wire up the XBee controller, and waterproof the remote breadboard.