I bought one in my corner of the reseller. First test: he mentioned 2.3 liters to fill a 1-liter bottle. I swapped against another: New failure !!! The apparatus mentioned first 1.5 liters for filling a bottle of 1 liter, this twice. Then again, he mentions volumes greater than 2 liters for still the same 1 liter bottle. I also did the test by choosing the measure in gallons rather than liters: every time the camera doubles or more the amount actually distributed. This really is crap !!! Its just the same scam ... and I weigh my words.