The House You Lock Up in June Is a Gamble Until October
A burst pipe is bad. A burst pipe in a house nobody has walked into for four months is a catastrophe.
Every spring, thousands of West Palm Beach homeowners pack up, set the alarm, and head north for the summer. The windows get shuttered, the mail gets held, and the car gets covered. But the one system that quietly causes the most expensive damage to an empty home is almost always overlooked: the plumbing.
Here is the problem. Your plumbing stays under pressure the entire time you are gone. A supply line to the toilet, a washing machine hose, or a corroded valve under the sink does not know the house is empty. If it fails in July, water keeps running, twenty four hours a day, for as long as it takes someone to notice. In our South Florida heat and humidity, that is not just a water bill problem. A constant leak in a closed up house turns into mold, ruined drywall, warped floors, and a remediation project that can cost more than a new car.
The good news is that almost none of this requires a plumber to prevent. A handful of steps before you leave can take the entire gamble off the table. Here is the checklist we give our seasonal customers every year.
Step One: Shut Off the Water at the Main
If you do only one thing on this list, do this one.
Shutting off the main water supply to your home before you leave eliminates the single biggest risk of an unattended house. No pressure in the lines means no flood, no matter what fails while you are gone. A cracked supply hose with the water off is a five dollar part you replace in October. The same hose with the water on is a four month flood.
In most West Palm Beach homes, the main shut off is in one of three places:
- Near the street or sidewalk, inside a rectangular concrete or plastic box in the ground near your property line, alongside the meter.
- On an exterior wall, where the main water line enters the house.
- In the garage or a utility closet, often near the water heater in newer construction.
We walked through exactly how to find and test this valve in our guide on hurricane season plumbing prep, and the same advice applies here. Find it before you need it. Turn it to make sure it actually closes. If it is corroded, stiff, or will not seat all the way, have it replaced before you leave. A shut off valve that does not shut off is useless, and an empty house is the worst possible time to discover it does not work.
If you have an irrigation system, a pool, or a refrigerator with an ice maker that you want left running, talk to a plumber about isolating just those lines rather than leaving the whole house pressurized. There is usually a smarter middle ground than all on or all off.
Step Two: Do Not Leave Your Water Heater Running for Nobody
A water heater sitting at 120 degrees for four months, heating water that no one will ever use, is one of the most wasteful and damaging things in a vacant Florida home.
We covered this in detail in our post on why you should flush your water heater every year, but seasonal homes are a special case. A tank that runs on a fixed schedule all summer with zero hot water demand is essentially a slow cooker for sediment. Our hard West Palm Beach water bakes a thicker and thicker mineral layer onto the bottom of the tank, and we routinely pull units out of snowbird homes that look ten years older than they actually are.
Before you leave:
- Switch the unit to vacation or pilot mode, or shut it off entirely at the breaker or gas valve. Most modern water heaters have a vacation setting for exactly this reason.
- Flush the tank before you go, not after you get back. Leaving with a clean tank means less sediment cooking onto the steel all summer.
- If the tank is already eight or more years old, this is the ideal time to consider replacing it on your schedule rather than gambling on it surviving another unattended summer. Learn more about our water heater repair and installation options.
A tankless unit is easier to leave behind, but it still benefits from a descaling flush before a long absence so it is ready the moment you flip it back on in the fall.
Step Three: Protect Your Drains and Fixtures
Here is a smell every returning snowbird knows: you open the front door after four months away and the house reeks of sewer gas.
That odor comes from dried out P-traps. The U shaped bend under every sink, tub, and floor drain holds a small plug of water that blocks sewer gas from rising into your home. When a house sits unused in our summer heat, that water slowly evaporates, and the gas barrier disappears.
Before you leave:
- Pour water down every drain, then add a few tablespoons of mineral oil. The oil floats on top and dramatically slows evaporation, keeping the trap sealed for months.
- Flush every toilet and consider turning off the supply valve behind each one after the final flush. A failed toilet fill valve is one of the most common sources of unattended water damage.
- Turn off the valves to your washing machine. Rubber washing machine hoses are a leading cause of household floods, and they fail under constant pressure. Shutting these two valves takes ten seconds and removes a major risk.
If your home will be completely empty with the main shut off, draining the lines by opening the lowest faucet for a few minutes after shutdown adds an extra layer of protection.
Step Four: Clear Your Drains Before They Clog in August
A drain that is a little slow in May becomes a full backup in August, and there is no one home to catch it early.
South Florida summers bring heavy, sustained rain that saturates the ground and pressures every sewer line in the county. If your main line already has root intrusion, a partial clog, or a weak joint, a summer of storms is exactly when it gives out. A backed up sewer line in an occupied house is a bad day. In a vacant one, it can run undetected until the damage is severe.
Before you go:
- Address any slow drains now. If a sink, tub, or toilet has been draining sluggishly, get it cleared before you leave rather than hoping it holds. Professional drain cleaning removes the buildup chemical cleaners leave behind. Here is why we recommend skipping the bottle of drain opener entirely.
- Consider a camera inspection if your home is older or has large trees near the sewer line. A video inspection reveals root intrusion or cracks before they become a collapsed line, and it is far cheaper to fix a pipe on your schedule than to come home to a flooded slab.
Step Five: Remember That Hurricane Season Does Not Wait for You
Hurricane season officially starts June 1, right as many snowbirds are heading out. That means your home may face its highest risk of the entire year while it sits empty.
A storm can drop municipal water pressure, overwhelm the sewer system, and push contaminated water backward into your pipes through a process called backflow. If your home has an irrigation system, a pool fill line, or any other cross connection, a working backflow preventer is your first line of defense, and Palm Beach County requires annual testing on most of these systems anyway.
This is the perfect time to schedule that test. We break down the whole process in our post on backflow testing in West Palm Beach, and you can read about everything else a storm can do to an unattended home in our hurricane prep guide. Getting your backflow testing handled before you leave checks a legal box and a safety box at the same time.
Step Six: Consider a Smart Water Monitor or Automatic Shut Off
If you want real peace of mind, technology can do the watching for you.
A smart water monitor installs on your main line and learns your home’s normal water use. The moment it detects the steady, around the clock flow that signals a leak, it can send an alert straight to your phone, and the more advanced models will automatically shut off the water on their own. For a home that sits empty half the year, it is one of the smartest upgrades a snowbird can make.
It is the same philosophy behind why we invested in our own in house leak detection equipment instead of outsourcing it. The faster a problem is found, the smaller it stays. A device that catches a leak at gallon ten instead of gallon ten thousand pays for itself the first time it works.
Step Seven: Have a Local Plumber You Can Call From 1,500 Miles Away
When you are sitting in Ohio in August and a neighbor texts that there is water seeping out of your garage, the last thing you want to do is start cold calling plumbers who have never seen your home.
This is where a relationship with a local company matters most. Before you leave, it is worth having a complete home plumbing evaluation done so there is a documented baseline of your system’s condition, and so the company already knows your house if something goes wrong while you are away. We keep that record on file, which means a call from out of state turns into a same day visit instead of a guessing game.
At Integrity Plumbing and Drain, we offer emergency plumbing service seven days a week, so a problem at your empty West Palm Beach home does not have to wait for you to fly back.
Your Pre-Departure Plumbing Checklist
Here is the short version to run through the morning you leave:
- Shut off the main water supply to the house
- Set your water heater to vacation mode or shut it off, ideally after a flush
- Pour water and a little mineral oil down every drain to keep P-traps sealed
- Turn off the supply valves to toilets and the washing machine
- Clear any slow drains and inspect the sewer line if your home is older
- Schedule your annual backflow test before hurricane season ramps up
- Consider a smart leak monitor with automatic shut off
- Confirm your local plumber’s number is saved in your phone before you go
Final Thoughts
The whole point of going north for the summer is to relax, not to spend four months wondering whether the house is still standing. The difference between coming home to the house you left and coming home to a mold remediation project usually comes down to a few simple steps taken on the way out the door.
Shut off the water, protect the water heater, seal the drains, and make sure your home is ready for hurricane season. None of it takes more than an afternoon, and most of it costs nothing at all.
At Integrity Plumbing and Drain, we help West Palm Beach snowbirds button up their homes before they leave and respond fast when something goes wrong while they are away. Whether you need a pre-departure water heater flush, a backflow test, a drain cleaning, or a full home evaluation before you lock the door, call us at 561-310-6435 to get on the schedule. Leave for the summer knowing your plumbing is handled.