I am bidding on few contracts for town squares this year that involves watering tree squares and planting pots as part of it. These are all along busy roads for the most part. In particular, one has 18 large 25-30 gallon waist size pots that need to be watered 3x weekly in the summer and fall. Im having trouble on the best way to figure into bidding this given the time to load the water, cost of water, and then actual watering with all the stopping and starting of watering them individually with the tank in the back of my truck. Any help would be appreciated.