In the early afternoon the maintenance person came to our house and switched heater to swamp cooler. The process took much longer than we thought because of the two reasons. The first reason is that they were two people. One person was a trainer and the other person was a trainee that they were showing and teaching in details. The other reason was that the pump was out of order. They needed to go to the DIY store and exchanged the pump that was still under warranty. After they left, we enjoyed the cold air in the entire house. Summer is just around the corner.
three wisdom 