I want to add water to a detached building on my land. Trying to bring it from the existing structure would be near impossible. So I want to tap into the black poly line from the well to the house. My concern is that because of the elevation difference between the house and the detached building, I am thinking that the pressure in the detached building will be lower than the house because of the head pressure on the line to the house. What do you think? I am worried that as I use the water in the detached building the pressure in the house will not equalize with the water in the house. I'm worried that the result will be running out of pressure in the detached building and the pressure switch in the house does not turn on the well pump.