water enters the tank at a rate of 20 gallons per minute and leaves the tank at a rate of 20 gallons per minute. one of the best times of year to travel here is in the spring. what do, or did, you want to know when you were first starting out? i learned this when a bunch of my examples failed one day. in fact, it is a very logical system. move this to the side for later step . instructions: squeeze the lemons, add the ginger and pour the water. 