6,500 mL for just 400 mL?
Nature should rape you back for that.
What if with out changing much, we found a solution?
Good, then I don't have to finish this project.
With the Arduino Flush-Less easily slid in to place, your standard toilet now has options. After each flush, it fills to the minimum, saving HALF as much water commonly used for flushing just urine. An average person uses a toilet per day twice for peeing and once for poo-peeing. Saving half as much water twice a day can equal almost 2 gallons a day. If you need to go deuce, press 2 (or Deuce on your smart phone) and the toilet fills to the nominal maximum level. Press F (or Flush on your smart phone) when you are done dropping the kids off at the pool. With JUST a mere 1,825 hackers using the AFL, we could save 1,000,000 GALLONS of water a year WITH OUT replacing a single toilet.