...now I just gotta make it work! RO unit came yesterday, everything in good shape, but I'm confused. How does the auto-shutoff valve work? Where to the 2 valves attach to? Also, I'm mounting it downstairs and the tank is upstairs. Should I have the RO fill into a clean garbage can and heat the water and mix it, then pump it upstairs when needed? This would fill upstairs buckets a lot faster, but would be more costly and more leakable. Or should I have it just fill directly into buckets upstairs when i need it? TIA 