Should I Turn Off Water When On Vacation?

When It Makes Sense

• Good fit: You are planning an extended vacation (two weeks or longer) in a region prone to freezing temperatures, and you have no essential appliances that require water. Shutting off the main supply and draining pipes reduces the risk of burst pipes and high water‑damage repair costs.
• Good fit: Your home has an older plumbing system or known leaks, and you will be away for several days. Turning off the water eliminates the chance of a leak worsening while you’re absent, saving both water and potential property damage.

When You Should Avoid It

• Warning sign: You rely on a water‑connected appliance such as a refrigerator with an ice maker, a sump pump, or a medical device that needs a continuous water supply. Cutting off water could disrupt these systems and cause inconvenience or health concerns.
• Warning sign: You are staying locally for a short weekend trip and have a reliable shut‑off valve that you could manually operate if needed. The effort of turning the water off may outweigh the minimal risk of a leak during a brief absence.

Pros and Cons

Pros

• Reduces the likelihood of costly pipe bursts, especially in cold climates where frozen water expands.
• Saves water and lowers utility bills when the household would otherwise be idle for a prolonged period.

Cons

• Inconvenient if you need to use water unexpectedly, such as a sudden repair that requires flushing the system.
• Potentially disrupts appliances that rely on a steady water source, leading to malfunction or the need to reset them after you return.

Decision Checklist

• How long will you be away, and does the climate pose a freezing‑water risk?
• Are any essential appliances or medical devices in your home dependent on a continuous water supply?
• Do you have an accessible main shut‑off valve and know how to drain the system safely?

Alternatives to Consider

If a full shut‑off feels excessive, you can install a frost‑proof faucet cover, set your thermostat low but above freezing, or use a leak‑detection sensor that alerts you to unexpected water flow. A timed valve can automatically close the supply for short vacations while keeping water available for critical devices.

Final Recommendation

For most homeowners embarking on a longer trip, especially in cold regions or with aging plumbing, turning off the main water supply is a prudent precaution. For short, local get‑aways, or when essential water‑dependent systems are present, the effort may not be justified. Weigh the checklist items, consider low‑risk alternatives, and consult a licensed plumber if you are unsure about valve operation or potential impacts on your home’s plumbing.