TL;DR: Before you head out for a trip, shut off your main water supply. Can’t do that? At least close the lines to your washer, dishwasher, and toilets. A little leak that springs up while you’re gone just keeps running, and it’ll wreck your floors, cabinets, and drywall long before you’re home to catch it. Ten minutes now saves you a nasty surprise later.
Key Takeaways
- Shut off the main water supply for any trip longer than a weekend.
- Washing machine and dishwasher hoses are the usual culprits.
- Slow leaks do their real damage when nobody’s around to spot them.
- Find your main shut-off valve now, not while you’re standing in an inch of water.
- If that valve hasn’t budged in years, get it checked before you go. Older South Surrey, White Rock, and Langley homes, especially.
What’s the Big Deal About Leaving the Water On?
Here’s the thing. The leak itself usually isn’t the problem. It’s the time.
A tiny pinhole leak drips a bit every minute. When you’re home, you catch it in a day, you hear the drip or spot the damp patch. When you’re gone for two weeks? That same little drip soaks the subfloor, creeps up into your cabinets, and spreads behind the drywall while you’re off enjoying yourself.
By the time you walk back in, it’s not a quick fix anymore. Now you’re looking at flooring, cabinets, wallboard, and that sneaky moisture problem that turns into mould.
Good news: shutting it off costs you nothing and takes a couple of minutes.
Which Valves Should You Actually Turn Off?
Start with the main shut-off valve. Close that, and every drop of water stops at the door, so the risk is just gone. For most trips longer than a weekend, that one move does the job.
Need to leave some water running, maybe for a basement suite or an irrigation timer? Then go after the troublemakers instead:
- Washing machine hoses. Those braided lines fail more than anything else in the house, and they let go under full pressure.
- The dishwasher line, for the exact same reason.
- Toilet supply valves, which love to leak quietly at the fill valve, where you’ll never notice.
Those three are behind a big chunk of the “I came home to a flood” calls we get around South Surrey, White Rock, and Langley every summer.
Pro Tip: Snap a photo of where your main valve is and save it in your phone. If a neighbour or house-sitter has to jump in fast, they won’t be crawling around in the dark trying to find it.
So Where Is Your Main Shut-Off Valve?
Plenty of folks have never laid a hand on theirs. Around here, it’s usually wherever the water line comes into the house: near the front foundation wall, in a utility room, the garage, or down in the crawlspace.
Go find it now, while everything’s dry and calm. Give it a quarter turn to make sure it actually moves. If it’s stuck, seized, or weeping around the stem, that’s something to sort out before your trip, not a discovery you want to make in a panic.
In older White Rock and Langley homes, a valve that’s sat untouched for years can be stiff or just plain worn out. A shut-off valve only helps if it actually shuts off.
What About the Water Heater?
No reason to keep it running for an empty house. Most units have a vacation or low setting built in for exactly this. Knock it down, and you save energy and go easy on the tank.
Not sure how to set yours? Check the label on the unit; it’ll tell you the right setting for your model. If it’s a gas unit or the controls look confusing, just leave it be and have it checked rather than fiddling with it.
Pro Tip: While you’re down there, take a quick look at the floor around the base. A little puddle or a rusty ring at the bottom of the tank means it’s getting close to the end. Way better to find that out before you leave than to come home to a soggy utility room.
Anything Else? Drains and Outdoor Taps
Two more quick ones.
First, your outdoor hose bibs. A cracked or worn-out tap can leak behind the wall under full summer pressure, and you won’t know a thing until the water bill lands or the damage shows up. Give each one a look and a gentle test.
Second, slow drains. If a drain gurgles or empties slowly, it’s telling you a clog’s forming. It won’t flood the house while you’re away, but jot it down so you can deal with it when you’re back instead of letting it grow into a real backup by fall.
When to Call Us
The easy stuff is all yours: closing the main valve, setting the water heater to vacation mode, eyeballing the outdoor taps. No plumber needed for any of that.
Give us a shout before your trip if:
- The main shut-off valve is seized, stuck, or weeping and won’t close properly.
- You spot rust, corrosion, or moisture around the base of the water heater.
- A hose or fitting looks bulged, crusty, or damp.
- You’re heading off for a good while and just want the whole system looked over first.
A quick once-over before you go costs a lot less than the water-damage repair it saves you from, and you get to leave knowing the house is solid.
The Bottom Line
The homes that flood over the summer almost never have a big, dramatic burst. They had a small, slow leak that ran for two weeks behind a locked door with nobody watching.
Ten minutes flips the whole script. Shut the main valve, drop the water heater to vacation mode, check your taps, and make sure that the valve actually closes. Anything looks off? Get it handled before you go, so you’re not stewing about it from a beach chair.
📞 Trip coming up and want the plumbing checked first? Call us at (604) 897-4989.
