Not practical for us. We live aboard. In the winter we only leave the galley sink open. No need for any others. The rest of the season requires we leave the seacock open for the reverse cycle heat/AC. The head sink drain is above WL and we keep the boat covered in the winter.
All electrical stays on for solar/wind generation, powering the heat/ac, battery charger, etc.
We do have 2 high water alarms in the bilge that are deafening along with 2 bilge pumps. My neighbors would hear them or someone in the resturant would complain.