If you’re gone for several weeks, consider shutting off your main shut off valve.
By turning off your main shut off valve, you’re not allowing any water to enter your home. If you decide to do this, make sure you open up your faucets and drain the remaining water out.
Worried that's still not enough and you'll return home to a new indoor swimming pool? Then you can go the extra mile by shutting off the individual water valves to appliances such as, washing machine, dishwasher, and ice-maker.