If you’ve noticed your toilet making noise long after you’ve flushed, it can be tricky to know whether it’s simply re-filling the tank—or if it’s constantly running. For Portland and Troutdale homeowners, this distinction is important because a running toilet wastes hundreds of gallons of water per day, sending your utility bill skyrocketing. Understanding the difference could save you money and prevent a late-night call for emergency plumbing services.

How to Tell the Difference
Normal Re-Filling
After you flush, the tank empties into the bowl, and the fill valve lets in fresh water. This process usually takes under two minutes. A brief hiss or gurgle is perfectly normal.
Constant Running
If your toilet continues to make noise for more than a couple of minutes—or starts back up again without being flushed—it’s a sign of a problem. Common causes include:
- A faulty flapper that doesn’t seal the tank properly
- A misadjusted float that prevents the fill valve from shutting off
- Worn-out internal components

Why a Running Toilet Matters
It may not seem like much, but a running toilet can waste up to 200 gallons of water per day. That means higher water bills, wasted resources, and the potential for unnoticed leaks around the base. For families in Portland and Troutdale, this can add up quickly.

Quick Homeowner Checks
If you’re handy, here are a few steps you can try before calling a pro:
- Food Coloring Test: Put a few drops of food coloring in the tank. If the color shows up in the bowl within 10 minutes without flushing, the flapper is leaking.
- Check the Float: If the float is set too high, the fill valve will never close completely.
- Inspect the Chain: Sometimes the chain connecting the handle to the flapper gets tangled or stuck.
If these simple checks don’t solve the problem, it’s time to call in a licensed plumber.

Risks of Ignoring a Running Toilet
- Water Damage: Continuous leaks can weaken your flooring or subfloor.
- Sewer Line Stress: Extra water flow can strain your sewer line, especially if partial blockages already exist.
- Emergency Repairs: A minor issue today can turn into an overflowing toilet tomorrow.

Professional Toilet Repair vs. DIY Fixes
While replacement parts from the hardware store may seem inexpensive, DIY solutions often mask bigger problems. Toilets connect to your home’s water line, and ignoring underlying issues can lead to long-term damage.
At Da Vinci’s Best Plumbing, we diagnose whether your toilet needs a simple repair, a component replacement, or a deeper inspection of connected lines. With over 100 5-star reviews, we’re proud to be the #1 trusted plumbing service in the Portland Metro area.

Seasonal Reminder: Don’t Wait for Winter
Colder weather increases water usage in Oregon households, from hot showers to holiday gatherings. Fixing a running toilet now keeps your system efficient before the busy season hits. It’s also a good time to schedule an inspection of your water heater to ensure you’re ready for colder months.

Save Money While Saving Water
A quick repair not only protects your plumbing but also lowers your monthly bills. Check out our plumbing service coupons to keep costs manageable while investing in long-term peace of mind.

Final Thoughts
If your toilet seems to run constantly, don’t brush it off as normal re-filling. It’s likely wasting water and straining your plumbing system. Call Da Vinci’s Best Plumbing today for expert diagnosis and fast repairs that will protect your home and your budget.
