New Home in Davis? Here’s Your Plumbing Checklist from a Local Pro

Buying a new home in Davis is a major investment.

Many Davis and Yolo County homes deal with hard water, which can cause scale buildup in pipes, fixtures, and water heaters.

Some older homes may still have aging or outdated plumbing materials. Large, mature trees can send roots toward sewer lines and cause blockages.

That’s why we’ve put together this complete plumbing checklist based on over a decade of service in Davis and throughout Yolo County.

Why You Need a Plumbing Checklist for Your New Davis Home

Table of Contents

California’s disclosure laws require sellers to reveal known defects, but they don’t always catch everything. Previous homeowners might not have noticed a slow leak or realized their water heater was operating inefficiently.

A comprehensive plumbing inspection protects your investment. Major plumbing repairs, such as sewer line damage or water heater replacement, can be expensive.

Sometimes, costing thousands depending on the issue.

Specific Considerations in Davis

Our area deals with hard water that causes mineral buildup in pipes and fixtures. Some older Davis neighborhoods, including areas like Old North Davis and Old East Davis, may still have galvanized steel pipes in homes built before the 1960s.

Homes near the greenbelt areas often face tree root intrusion into sewer lines.

Your Room-by-Room Plumbing Checklist

1. Kitchen Plumbing Inspection

Start in the kitchen. This is where you’ll use water constantly, so problems here disrupt your daily routine fast.

A. Check Under the Sink

Open the cabinet doors and look at the P-trap (the curved pipe) and all connections. Feel along the pipes for dampness. Look for:

Signs of moisture or water stains
Active leaks at connections
Corrosion on pipes or fittings

B. Test Your Faucet and Fixtures

Turn on the faucet, let it run, and answer these questions:

Does water flow smoothly?
Is the pressure adequate?
Does it take a long time for hot water to arrive?

These issues might indicate problems with your water heater or supply lines.

Run the garbage disposal if you have one. Listen for unusual grinding sounds or vibrations. A disposal that’s on its way out will make noise before it fails completely.

C. Inspect the Dishwasher

Check the dishwasher connection. Look underneath and behind the unit if possible. Water stains on the floor or cabinet bottom indicate a leak that needs immediate attention.

2. Bathroom Plumbing Checks

Bathrooms are plumbing-heavy rooms. You’ve got multiple fixtures that all need inspection.

A. Toilet Inspection

Flush each toilet and watch how it performs:

Does it flush completely?
Does it run continuously after flushing?
Is there any rocking when you sit on it?

A rocking toilet might have a damaged wax ring, which can lead to water damage and costly floor repairs.

B. Faucets and Sinks

Turn on all faucets at full pressure and check for:

Leaks around the base of the faucet
Leaks underneath the sink
Corrosion on the supply line (small hoses connecting to the faucet)

C. Showers and Tubs

Test your showers and bathtubs. Turn the water on full blast and check the pressure. Is it consistent? Does the temperature stay stable?

Look at the caulking around the tub and shower. Deteriorated caulk allows water to seep into walls, creating mold and structural damage.

3. Laundry Room Evaluation

The laundry room might seem simple, but it’s a common source of water damage.

A. Washing Machine Hoses

Inspect the washing machine hoses. These rubber hoses can crack and burst, releasing gallons of water into your home. If the hoses look old, cracked, or bulging, they need immediate replacement.

Braided stainless steel hoses are more durable than standard rubber.

B. Drainage and Shutoff Valves

Check the drain pipe where the washer hose connects. Make sure it’s secure and that water can drain freely.

Next, look for a shutoff valve near the washing machine connections. You should be able to turn off the water supply to the washer without affecting the rest of the house.

4. Water Heater Inspection

Your water heater is one of the most critical components of your plumbing system.

A. Check the Age

Look for a label on the side with a serial number. Most tank-style water heaters typically last around 8 to 12 years, depending on maintenance and water quality.

If yours is approaching or past that age, start planning for replacement.

B. Look for Warning Signs

Check around the base of the water heater for any signs of water. Even small amounts of moisture indicate a problem. Check the pressure relief valve. There should be a pipe extending from it down toward the floor.

At the same time, listen to your water heater when it’s running.

Outdoor Plumbing Assessment

Don’t forget the plumbing outside your home.

Hose Bibs and Outdoor Faucets

Turn on outdoor faucets on and check for leaks around the handle and where the faucet connects to the house. Look for signs that they’ve frozen in the past, like split fixtures or damaged threads.

Make sure your hose bibs have shut-off valves inside the house so you can protect them during cold snaps.

Sprinkler System Review

Many Davis homes have irrigation systems for landscaping.

Test Each Zone

Turn on each zone of your sprinkler system and watch carefully. Look for:

Broken heads
Geysers shooting up from underground leaks
Areas where water pools excessively

Check Your Controller

Understand how to adjust it. Davis often follows mandatory water conservation measures, so make sure your sprinkler controller is programmed accordingly.

Sewer Line Considerations

Your sewer line isn’t visible, but problems here can be catastrophic. Ask the previous owner about any history of sewer backups or tree root intrusion.

If the home has large trees in the yard or nearby, especially older oaks, elms, or willows, consider having a camera inspection done.

Warning Signs of Sewer Problems:

Slow drains throughout the house
Gurgling sounds from toilets
Sewage odors in the yard

These indicate potential blockages that will only get worse.

Critical System Checks

Water Pressure Testing

Most homes operate safely and comfortably with water pressure in the 40–60 PSI range. Too low and your showers are disappointing. Too high and you risk damaging fixtures, appliances, and pipes.

How to Test:

You can buy an inexpensive pressure gauge at any hardware store. Attach it to an outdoor hose bib and turn on the water to get a reading.

If pressure is too high, you need a pressure regulator installed.
If it’s too low, there might be a problem with the main supply line or a partially closed valve.

Main Water Shutoff Valve

This is possibly the most important thing to locate in your new home.

Find your main water shutoff valve right away. It’s typically where the water line enters your house, like in the garage, basement, or outside near the water meter.

Turn it off and on to make sure it works. A seized valve is useless in an emergency.

Drain Performance

Slow drainage means buildup in the pipes that will eventually cause complete blockage.

Fill your sinks with a few inches of water, then pull the plug and watch how quickly they drain. Water should swirl down smoothly without backing up.

Davis-Specific Plumbing Concerns

Hard Water Issues

Much of Yolo County experiences hard water with high mineral content. Look for white, chalky deposits around faucet aerators and showerheads. This is calcium and magnesium buildup.

Check inside your water heater if possible. Hard water in many parts of Davis speeds up mineral and sediment buildup inside water heaters. Consider installing a water softener if the home doesn’t have one.

Older Home Considerations

Davis has many charming older homes, particularly in established neighborhoods.

Pre-1960 Homes

Homes built before 1960 might have galvanized steel pipes that corrode from the inside. This causes low water pressure and discolored water. These pipes should be replaced with modern copper or PEX.

1970s-1980s Construction

Some homes built in the late 1970s through the early 1990s may have polybutylene piping, which is known for potential failure. If you see gray or white plastic pipes, have them inspected by a professional plumber.

Tree Root Intrusion

Davis is known as “The City of Trees” for good reason. Those beautiful trees can wreak havoc on sewer lines.

Tree roots seek out water and will infiltrate even tiny cracks in sewer pipes. Once inside, they grow and create complete blockages. Older clay or cast iron sewer lines are especially vulnerable.

When to Call Yolo Plumbing

Some items on your plumbing checklist you can handle yourself. Others require professional expertise.

Call us if you find:

Active leaks that you can’t stop
Water heaters older than 10 years or showing signs of failure
Serious drainage issues throughout the house
Signs of sewer line problems
Low or high water pressure you can’t diagnose
Outdated or damaged pipes that need replacement

We’ve been serving Davis and Yolo County since 2011. We know the common issues in local homes, from hard water problems to the quirks of older Davis neighborhoods.

Schedule Your New Home Plumbing Inspection

A thorough plumbing checklist helps you avoid the surprise of a midnight pipe burst or a Monday morning water heater failure.

Take a weekend to work through this checklist systematically. Document everything with photos. Keep records of what you find and what actions you take.

Your home is likely your biggest investment. Protecting it starts with knowing the condition of critical systems like plumbing. Call us to schedule your inspection today.