Why Your Water Pressure Dropped

There's nothing quite as annoying as turning on the faucet and getting a weak dribble instead of a strong stream. Maybe your shower used to feel great and now it barely rinses the shampoo out of your hair. Or your kitchen sink takes forever to fill a pot. Low water pressure can sneak up on you slowly, or it can happen almost overnight.

The good news is that most causes of dropped water pressure fall into a handful of common categories. Some of them you can check and fix yourself in a few minutes. Others are signs of something bigger going on behind your walls or under your yard that really should be looked at by someone who works with pipes every day.

This guide walks through the usual suspects, starting with the easy stuff and working toward the issues that call for a professional set of eyes.

Start With the Small, Simple Fixes

Before you assume the worst, check the little parts of your fixtures first. Faucet aerators and showerheads have tiny screens that catch mineral deposits and debris over time. In homes with harder water, these deposits build up faster than you'd think, and they can choke off flow without you noticing right away.

Unscrew the aerator from the tip of your faucet, or the showerhead from the pipe, and take a look. If you see white or greenish crust, soak the part in a bowl of vinegar for a while, then use an old toothbrush or small brush to scrub away the loosened build-up before rinsing and reattaching. This is completely safe to do yourself and often solves the problem in one fixture at a time.

If cleaning the aerator or showerhead brings the pressure right back, you've found your answer. If the flow is still weak afterward, the cause is probably somewhere else in the system.

Is It One Fixture, or the Whole House?

This is one of the most useful questions you can ask yourself. If only one sink or shower is affected, the issue is usually local to that fixture or the line feeding it. A partially closed shut-off valve under the sink, a kinked supply line, or a stuck cartridge inside the faucet can all cause weak flow in just one spot.

If every fixture in the house seems weak at the same time, the cause is more likely upstream. That could mean the main shut-off valve isn't fully open, a problem with the water heater, or an issue with the main water line coming into your home. It's worth walking around and checking that any visible shut-off valves are turned all the way to the open position, since a partially closed valve is an easy thing to overlook.

If everything checks out and the whole house is still affected, it's a good sign the issue is beyond a quick homeowner fix.

Hidden Leaks Can Quietly Drain Your Pressure

A leak inside a wall, under a floor, or in an underground line can pull pressure away from the rest of your plumbing without any obvious mess at first. Water finds the path of least resistance, and if that path is a crack in a pipe instead of your faucet, you'll feel it as weaker flow throughout the house.

Signs to watch for include damp spots on walls or ceilings, a ceiling leak that shows up out of nowhere, the sound of running water when nothing is turned on, or a water bill that climbs for no clear reason. None of these are things to try to chase down and fix on your own, since finding a hidden leak usually means opening up a wall or using equipment like a video camera to see inside the pipe.

If you suspect a hidden leak, it's worth getting it checked sooner rather than later. Left alone, a small leak can slowly turn into a bigger repair job.

Older Pipes and Mineral Build-Up

Many homes in Bloomfield have plumbing that's been in place for decades. Older pipes, especially galvanized ones, tend to collect mineral build-up on the inside over the years. As that build-up thickens, the inside diameter of the pipe shrinks, and water simply has less room to move through.

This kind of narrowing usually shows up gradually. You might notice your water pressure has been a little weaker each year rather than dropping all at once. Unfortunately, this isn't something you can fix from the outside of the pipe. If build-up inside old water lines turns out to be the cause, the long-term fix usually involves replacing the affected sections.

When It's Time to Call a Plumber

If cleaning your aerators and showerheads didn't help, if the pressure drop affects your entire home, or if you notice any signs of a leak, it's a good idea to have a professional take a look. A plumber can check your valves, inspect your lines, and if needed, use a video camera to see exactly what's happening inside pipes you can't get to.

Water pressure problems are easier to sort out when they're caught early, and figuring out the actual cause saves you from guessing and redoing work later. If you're dealing with a stubborn pressure drop anywhere in your home, feel free to give us a call. We're happy to talk through what you're noticing and help you figure out the next step.

Questions about your own situation? The team at Stamp Plumbing & Heating is happy to help — call us at (862) 333-9396 or request an appointment.

This article is for general information only.