Vacation Prep: Plumbing Checklist

Don’t Leave for Vacation Without Running This Plumbing Checklist First

Southern California summers were made for getting away. Whether you’re heading to the mountains above Big Bear, flying out of LAX for an international trip, or packing the car for a long weekend up the coast, leaving home should feel exciting — not stressful. What shouldn’t happen is coming back to a flooded bathroom, a water heater that failed while you were gone, or a water bill that doubled because a toilet ran nonstop for two weeks.

Plumbing problems don’t take vacations. And in the Los Angeles area, where older housing stock, hard municipal water, and the occasional seismic event all put additional stress on residential plumbing systems, the odds of something going wrong increase with every day the home sits unattended. A slow drip under the sink, a water heater showing its age, a running toilet that you’ve been meaning to fix — these are the things that turn into expensive emergencies when no one is home to catch them early.

Adeedo Plumbing, Drains, Heating & Air has been serving Southern California homeowners since 1949. Our courteous, professional, and skilled technicians know exactly what to check before you leave — and what it takes to make sure your Los Angeles area home is safe, dry, and exactly as you left it when you return.

Why Pre-Vacation Plumbing Prep Matters in Southern California

• LA’s Older Housing Stock Carries Real Risk: The greater Los Angeles area is home to some of the most architecturally diverse — and oldest — residential housing in the country. From mid-century homes in Pasadena and Glendale to post-war bungalows throughout Torrance, Hawthorne, and Inglewood, many Southern California homes have plumbing infrastructure that’s been in place for decades. Aging galvanized steel pipes, older shut-off valves that haven’t been turned in years, and water heater tanks approaching the end of their service life all represent elevated risk when a home sits vacant for an extended period.
• Hard Water Accelerates Fixture and Water Heater Wear: Los Angeles municipal water is moderately to significantly hard depending on the source blend at any given time. That mineral content builds up inside water heater tanks, accelerating sediment accumulation and corrosion. It hardens rubber washers and valve seats inside fixtures. And it creates scale buildup in supply lines and fixture aerators that reduces flow and puts additional stress on aging components. A home with hard-water-stressed plumbing is more likely to experience a failure during a vacancy than a home with newer, well-maintained plumbing systems.
• Seismic Activity Is a Reality for LA Homeowners: Southern California homeowners live with the reality of seismic activity year-round. Small tremors are common throughout the LA basin, and even a minor shake can be enough to loosen an already-compromised pipe joint, shift a water heater off its platform, or nudge a fixture connection that was on the edge of failure. Before a vacation, it’s worth checking that your seismic gas shut-off valve is properly installed and functional — and that your water heater is properly strapped. Adeedo offers earthquake/seismic valve installation for homeowners who haven’t yet addressed this critical safety feature.
• California’s Water Conservation Requirements Make Leaks Costly: California’s ongoing water conservation framework means that undetected leaks during a vacation aren’t just a damage issue — they’re a billing issue. Tiered water pricing structures charge more per unit as usage increases, and a running toilet or a failed supply line can push a household into the highest billing tier rapidly. Coming home to a water bill that’s three times the normal amount is a painful reminder of what a quick pre-vacation inspection could have prevented.
• Vacant Homes Lose the Early Warning Advantage: When you’re home, you hear the drip, notice the damp cabinet, feel the soft floor near the base of the toilet. When the house is empty, every one of those early warning signals goes undetected until the damage has already been done. A home prepared for vacancy is one where the most common plumbing failure points have been addressed so that even if something unexpected occurs, the impact is minimized.

10-Point Vacation Plumbing Checklist for Southern California Homeowners

1. Locate and Test Your Main Water Shut-Off Valve: Before anything else, find your main water shut-off valve and confirm it operates correctly. In most Los Angeles area homes, this is located near the water meter at the front of the property or in a utility area. Turn it fully off and then back on to confirm it operates smoothly. Valves that haven’t been exercised in years can be stiff, stuck, or partially corroded — and a non-functional shut-off valve during a supply-side failure means water keeps flowing until someone can reach the street meter.
2. Inspect Under Every Sink for Active Leaks: Open the cabinet under every kitchen and bathroom sink and look carefully at the supply lines, drain connections, and P-traps. Look for moisture on the cabinet floor, water staining on the back wall, mineral deposits around fittings, or any active dripping. Supply line failures — particularly on older braided or rubber lines — can release water at full pressure and saturate surrounding cabinetry, subfloor, and wall cavities quickly. A visual inspection takes minutes and can catch a problem before it becomes a remediation project.
3. Check Your Water Heater: Look at your water heater from the outside. Is there any pooling water on the floor around the base? Any rust or corrosion on the tank body, the inlet and outlet connections, or the anode rod access point? Is the pressure relief valve dripping or showing signs of past discharge? A water heater showing any of these signs carries elevated risk of failure — and a failed tank can release 40 to 50 gallons of water into your utility space or garage in minutes.
4. Test Every Toilet for Running or Leaking: A toilet with a worn flapper can silently leak 200 or more gallons per day into the drain — over 6,000 gallons per month from a single toilet. In a state with tiered water pricing and conservation requirements, that’s both an environmental and a financial problem. The test is simple: add a few drops of food coloring to the toilet tank and wait 15 minutes without flushing. Color appearing in the bowl confirms the flapper is leaking. Also check around the base of each toilet for any moisture or soft flooring that might indicate a wax ring failure — a slow leak at the base can damage subfloor material over weeks without producing visible symptoms.
5. Turn Off Washing Machine Supply Valves: Washing machine supply hose failures are among the most common and most catastrophic sources of residential water damage. The hoses connect at full supply pressure, and if one fails while the home is unoccupied, water flows continuously until someone shuts it off. Before leaving, turn off both the hot and cold supply valves at the wall behind the washing machine. It’s a 10-second step that eliminates one of the highest-risk failure points in the entire home. If your hoses are rubber and more than five years old, consider upgrading to braided stainless steel before the next vacation.
6. Run Water in Infrequently Used Fixtures: Guest bathrooms, powder rooms, and other fixtures that don’t get daily use can develop dry P-traps during extended vacations. A dry trap allows sewer gases to enter the home through the open drain — which is unpleasant to come home to and can be a health concern in confined spaces. Run water for 30 to 60 seconds in every sink, tub, shower, and floor drain before you leave to keep the traps properly sealed.
7. Check for Slab Leak Warning Signs: Southern California homes built on concrete slabs — which describes a significant portion of the residential housing stock throughout the LA basin — are vulnerable to slab leaks: supply or drain line failures occurring within or beneath the concrete foundation. Warning signs include unexplained warm spots on hard flooring, the sound of running water when no fixtures are in use, sudden increases in water bills, or cracks appearing in flooring or walls without an obvious cause. If you’ve noticed any of these recently, have it evaluated before you leave. Adeedo offers slab leak detection and leak detection services throughout Southern California — a slab leak that goes undetected during a two-week vacation can cause serious structural damage.
8. Inspect Outdoor Hose Bibs and Irrigation Connections: Walk around the exterior of your home and check every outdoor hose bib. Disconnect garden hoses before you leave — a connected hose can trap pressure and damage the bib and associated interior plumbing. If you have a drip irrigation system, confirm it’s set to an appropriate schedule for your absence and check for visible leaks or damaged emitters at connection points. An irrigation controller running on a cracked head or a failed drip emitter can waste significant water per zone cycle for the entire duration of your trip.
9. Check Your Gas Lines and Seismic Valve: Before leaving for an extended vacation, take a moment to check accessible gas line connections at appliances — the range, water heater, and dryer — for any detectable gas odor, corrosion at fittings, or signs of past movement. Confirm that your seismic shut-off valve is properly installed and hasn’t been tripped by a recent tremor. If your home doesn’t have a seismic gas shut-off valve installed, that’s a conversation worth having with Adeedo before your next trip. Adeedo handles gas line repair and seismic valve installation throughout the Southern California service area.
10. Know Who to Call and Share That Number: Before you leave, save Adeedo’s number in your phone and share it with whoever is keeping an eye on your home — a neighbor, a family member, a property manager. Adeedo can be reached at (833) 936-1791 and offers day and night service including weekends and holidays, so there’s always a real team available when something urgent comes up during your absence. That one step can be the difference between a manageable plumbing repair call and coming home to a full-scale water damage emergency.

Why Southern California Homeowners Choose Adeedo

• Proudly Serving Southern California Since 1949: Adeedo has been serving Los Angeles, Burbank, Glendale, Pasadena, Santa Monica, Long Beach, Torrance, Beverly Hills, Redondo Beach, Manhattan Beach, and communities throughout Southern California for over 75 years. We understand the specific plumbing challenges that LA area homes face — from aging infrastructure in historic neighborhoods to hard water wear across the entire region — and they bring that depth of local experience to every service call.
• 100% Happiness Guarantee: Adeedo backs every service with a 100% Happiness Guarantee. The job isn’t done until you’re happy — and if they fall short, they will do everything to correct the problem right away.
• BBB Accredited and Google Guaranteed: Adeedo holds BBB Accreditation and Google’s Guaranteed designation — both of which reflect our consistent commitment to quality service, professional conduct, and customer satisfaction across the Southern California area.
• Day and Night Service — Including Weekends and Holidays: Plumbing problems don’t follow a business schedule. Adeedo offers service day and night, including weekends and holidays, so help is available when you actually need it — not just during convenient hours.
• Instant Credit and Financing Options: If a pre-vacation plumbing inspection reveals a repair or replacement that needs to happen before you leave — a water heater replacement, a supply line upgrade, or a slab leak repair — Adeedo offers instant credit and flexible financing options so the right repair doesn’t have to wait.
• The CHAMP Rewards Maintenance Plan: For Southern California homeowners who want year-round protection and priority service, the CHAMP Rewards maintenance plan provides scheduled maintenance visits, priority scheduling, and the peace of mind that comes from knowing your home’s plumbing and HVAC systems are being monitored by professionals throughout every season. For homeowners who travel frequently, it’s one of the most practical investments available.

Leave With Confidence — Not a Worry List

Summer vacation in Southern California starts and ends at home. The few minutes it takes to run through this checklist before you lock the door behind you can be the difference between a relaxing trip and an expensive homecoming.

Call Adeedo today at (833) 936-1791 or schedule your pre-vacation plumbing inspection online at Adeedo to make sure your Southern California home is ready to sit safely and securely while you’re away — so you can actually enjoy every minute of your trip.