Common Plumbing Issues & How to Fix Them

Seattle homeowners deal with a range of plumbing problems throughout the year. From steady rain to aging pipes in older neighborhoods, there are plenty of factors that can affect your system.

In this guide, we’ll cover some of the most common plumbing issues, what you can try on your own, and when it’s time to call a professional.

If you’re unsure about a repair or the problem keeps coming back, reliable plumbing services can help prevent larger damage.

Running Toilet

A running toilet is one of the most common plumbing issues homeowners experience. You may hear water constantly refilling the tank, even when it hasn’t been used.

What’s happening:

Often, the flapper valve inside the tank isn’t sealing properly, or the fill valve needs adjustment.

What you can try:

• Check and replace a worn flapper.
• Adjust the float so water stops at the correct level.

When to call a plumber:

If replacing basic components doesn’t stop the running, the problem may involve internal tank parts or supply line issues.

Clogged Drain

Clogged sinks, tubs, and showers are another issue Seattle homeowners deal with.

What’s happening:

Hair, soap buildup, grease, and debris accumulate inside the drain line.

What you can try:

• Remove visible debris from the drain.
• Use a plunger to loosen minor clogs.
• Avoid harsh chemical cleaners that can damage pipes.

When to call a plumber:

If the clog keeps returning or multiple drains are affected, it may indicate a deeper blockage requiring professional attention or emergency plumbing repair.

Low Water Pressure

Low water pressure can make showers frustrating and washing dishes slow.

What’s happening:

Mineral buildup in fixtures, partially closed valves, or leaks can reduce flow.

What you can try:

• Clean faucet aerators and showerheads.
• Check that shut-off valves are fully open.

When to call a plumber:

If pressure is low throughout the home, the issue may involve a hidden leak or supply line problem.

Shower or Faucet Leaks

Dripping faucets and showerheads may seem minor, but they waste water and increase utility bills.

What’s happening:

Worn washers, O-rings, or cartridges allow water to pass through even when the fixture is turned off.

What you can try:

• Replace worn washers or cartridges.
• Tighten loose fittings.

When to call a plumber:

If the leak continues after replacing components, the issue may involve valve damage or pipe wear.

No Hot Water

Few plumbing problems are more noticeable than stepping into a cold shower.

What’s happening:

This could be due to a faulty heating element, a tripped breaker, sediment buildup, or pilot light issues.

What you can try:

• Check the breaker panel.
• Confirm the pilot light is lit (if applicable).

When to call a plumber:

Persistent issues may require professional diagnosis, especially if your water heater shows signs of aging.

Water Leaks

Water leaks are among the most serious common plumbing issues because they can cause structural damage if ignored.

What’s happening:

Leaks may develop from corroded pipes, loose connections, or cracked fittings.

What you can try:

• Shut off the main water supply.
• Dry the affected area to prevent further damage.

When to call a plumber:

If you see water stains, mold growth, or unexplained moisture, professional plumbing services are recommended.

Brown or Discolored Water

If your water looks brown or cloudy, it often points to a change somewhere in the plumbing or water supply.

What’s happening:

Discolored water may result from sediment, rust in older pipes, or recent municipal work.

What you can try:

Run cold water for several minutes to see if it clears.

When to call a plumber:

If discoloration continues, it may indicate pipe corrosion or supply issues that need inspection.

Trust Us with Your Plumbing Needs

While some common plumbing issues can be handled with basic tools and patience, others require professional experience. Addressing plumbing problems early helps prevent larger repairs down the road.

If you’re dealing with recurring plumbing problems or a sudden issue that won’t wait, schedule online to book an appointment with a local team that understands Seattle plumbing systems.