In Michigan towards the fall we use to run into this problem, people turning off the water to there spickets ( or lawn sprinkler company does it when they winterize the sprinkler system). We switched over to two flat bed trucks that carry 700 gallons of water mainly for this reason. To many time we would show up and the outside water source wasnt on. Then the Homeowner is like o hey come on in and go in my basement and see if you can find how to turn it on. …HMM no thanks.