How to Avoid Plumbing Emergencies Before Vacation

A St. Louis Homeowner’s Pre Vacation Plumbing Checklist

Nothing ruins a relaxing vacation faster than a call from a neighbor saying water is pouring out of your front door.

At Linek Plumbing Company, we’ve seen it all — failed sump pumps during heavy rain, burst washing machine hoses, leaking water heaters, and expansion tanks that let go while the homeowner was sitting on a beach somewhere warm.

The good news? Most plumbing emergencies while you’re away are preventable.

Here’s a practical pre vacation plumbing checklist we recommend before leaving town.

1. Don’t Exercise Old Main Shutoff Valves Right Before a Trip

You may have heard the advice: “Just shut off your main water before vacation.”

In theory, that reduces risk.
In reality — especially in older St. Louis homes — it can create new problems.

If your main valve hasn’t been used in years:

• It may leak when turned.
• It may not fully reopen.
• It could fail at the packing nut.
• Sediment in older lines can loosen and clog aerators and cartridges when water is restored.

The night before vacation is not the time to discover your shutoff valve doesn’t work properly.

If you want the confidence of a reliable shutoff, contact us to have your old shut-off replaced.

2. Shut Off Individual Fixtures Instead

A safer alternative is to turn off supply valves to high-risk appliances:

• Washing machine
• Ice maker
• Dishwasher (if accessible)
• Under-sink shutoffs that are easy to operate

Washing machine hoses in particular are one of the most common causes of major water damage claims. Replacing them is simple and relatively inexpensive.

If you’d like us to replace aging toilet and fixture shutoff valves, please contact us for a service appointment.

3. Check Your Sump Pump (Critical in St. Louis)

Between heavy spring rains and saturated clay soil, sump pumps are not optional in many local homes.

Before vacation:

• Pour a bucket of water into the sump pit to confirm the pump activates.
• Listen for unusual noises.
• Make sure the discharge line outside is clear.
• Confirm your backup battery is working (if installed).

If you’d like a deeper look at how sump systems protect your home, see our overview of sump pump installation and repair services and learn more about smart sump pumps.

4. Water Heater & Expansion Tank Check

If your water heater is older (8–12+ years), take a moment to:

• Check for rust around the bottom.
• Look for moisture near the T&P valve discharge line.
• Inspect the expansion tank (if installed).

If you’re unsure about flushing schedules, we break that down in detail here:
When to Flush (and Not Flush) Your Water Heater

Expansion tanks are a common culprit in basement flooding — when they fail, they don’t drip… they gush.

We recently covered this in more detail here:
Thermal Expansion Tanks – A Common Culprit of Flooded Basements

5. Test Smart Shutoff or Leak Detection Devices

If you’ve installed a smart water shut-off system, confirm:

• It’s connected to Wi-Fi.
• Notifications are enabled.
• The automatic shutoff feature is active.

If you’re considering installing one before a future trip, read our breakdown of
smart water shut-off valves and insurance benefits.

These systems can automatically stop water flow if abnormal usage is detected — providing peace of mind when you’re traveling.

6. Clear Gutters & Downspouts

Clogged gutters can:

• Overwhelm foundation drainage.
• Increase hydrostatic pressure.
• Contribute to basement water intrusion.

While this isn’t strictly plumbing, it directly affects foundation drainage and basement conditions — especially in older St. Louis neighborhoods.

7. Avoid “Vacation Surprises” from Garbage Disposals

Before leaving:

• Run cold water and flush the disposal.
• Avoid leaving food waste sitting in the unit.
• Do not use chemical drain cleaners.

We’ve written a full guide on extending disposal life here:
Garbage Disposal Care & Longevity Tips

A disposal backup after sitting for a week can create both odor and drain issues.

8. Ask a Neighbor to Check In

Even if everything looks good, having someone:

• Walk through the house
• Check the basement
• Listen for running water

… can catch small issues before they become major repairs.

The Real Goal: Reduce Risk Without Creating New Problems

Most plumbing emergencies happen because:

1. Water remains under pressure.
2. A weak component fails.
3. No one is home to catch it early.

But smart prevention shouldn’t introduce new risks.

At Linek Plumbing Company, we focus on practical advice — not blanket recommendations that might cause problems in older homes.

Because the only thing you should worry about on vacation… is sunscreen.