PLUMBING INSPECTION CHECKLIST

Home Plumbing Inspection Checklist — What Every San Diego Homeowner Should Check
Most homeowners only think about their plumbing when something breaks. But a simple annual walkthrough of your home’s plumbing systems can catch problems early, prevent emergencies, and save you significant money over time. This checklist is designed for San Diego and North County homeowners — it accounts for the specific conditions, water chemistry, and housing ages common in this area.

Table of Contents:

1. Kitchen Plumbing Checklist
2. Bathroom Plumbing Checklist
3. Water Heater Checklist
4. Main Line and Foundation Checklist
5. Outdoor and Irrigation Checklist
6. When To Call a Plumber
7. FAQ

Kitchen Plumbing Checklist

Under the Sink:

• Check supply line connections for moisture or corrosion
• Inspect drain pipe connections for drips or staining
• Test garbage disposal for proper operation and unusual sounds
• Check disposal reset button — should not be tripped

Faucets and Fixtures:

• Test faucet for drips when fully closed
• Check water pressure at the kitchen faucet
• Clean aerator screen — mineral buildup restricts flow
• Inspect dishwasher supply line and drain connection

Bathroom Plumbing Checklist

Toilets:

• Food coloring test — add dye to tank and check bowl after 15 minutes
• Check toilet base for floor staining or soft flooring
• Test flush valve and fill valve for proper operation
• Inspect supply line connection at wall and tank

Shower and Tub:

• Check showerhead for mineral buildup or reduced flow
• Test tub spout diverter — should fully redirect flow to shower
• Inspect caulk around tub and shower base for gaps or mold
• Check drain for slow drainage

Vanity:

• Inspect supply line connections under vanity
• Check drain stopper mechanism for proper operation
• Look for moisture or mold under vanity cabinet

Water Heater Checklist

• Check age of unit — note date on manufacturer label
• Inspect base of unit for moisture or rust staining
• Check pressure relief valve — should operate freely
• Inspect flue connection on gas units for proper seating
• Listen for unusual sounds — popping or rumbling indicates sediment buildup
• Check pilot light on gas units
• Test hot water temperature — should be 120 degrees Fahrenheit
• Inspect anode rod every 3 to 5 years — extends tank lifespan significantly

When To Call a Professional

Some items on this checklist you can address yourself — cleaning aerators, adjusting toilet flappers, resetting a disposal. Others require a licensed plumber. Call 911 Plumbing & Drain Rescue if you find any of the following during your inspection.

• Water meter moving with all fixtures off
• Water pressure below 40 or above 80 PSI
• Warm spots on floors
• Moisture or rust staining at water heater base
• Slow drains in multiple fixtures simultaneously
• Any visible pipe corrosion or mineral buildup on supply lines
• Water heater over 10 years old — schedule an assessment

Main Line and Foundation Checklist

• Perform water meter test with all fixtures off — check for movement
• Walk through home noting any unexplained warm spots on floors
• Check water pressure at multiple fixtures throughout the home
• Inspect main shutoff valve — should open and close freely
• Check pressure regulator — water pressure should be 40 to 80 PSI
• Look for moisture staining at base of walls throughout the home
• Note any musty odors in rooms without obvious moisture sources

Outdoor and Irrigation Checklist

• Test all hose bibs for drips when closed
• Inspect irrigation controller settings — adjust seasonally
• Walk irrigation zones while running to identify broken heads
• Check drip line connections for leaks at emitters
• Inspect main irrigation shutoff valve operation
• Look for wet patches in lawn during dry weather — possible supply line leak

Frequently Asked Questions

How often should I do a home plumbing inspection?