Gee, racers, sorry, but the pumps were broken 'til just now and all we can do is pump Pond 4, which is full of snowmelt and rain and not much dissolved salt, so then we can fill the pond with nice salty water to evaporate. Where, oh where, shall we send the not-very-salty water? How 'bout to the flats so the racers think we've pumped lots of salt to the flats? They'll never notice . . ."