Your Question– “When going on vacation, do you recommend turning off the main shutoff valve? It does seem like this would be a good idea to minimize the risk of water damage to the house, but I am wondering if there is damage you can do by not having water in the pipes. Could this be a problem for the dishwasher, washing machine, etc.? Or, the pipes in general?”
Our Answer– In our opinion, it is ok to shut the main shut off valve if you’re going on vacation. You should also put your water heater on “vacation” mode.