Start by asking which taps are weak
The pattern tells you almost everything. If only one faucet or showerhead is weak, the problem sits at that fixture. If hot water is weak and cold is strong, look at the water heater side. If everything in the house is weak, the cause is upstream, at the main valve, the regulator or the service line.
Try this: open a tub faucet, a kitchen faucet and an outdoor spigot one at a time. Note which feel normal. Then run two at once. If one drops hard when another opens, the supply is restricted, and the pipe is likely narrowed by scale or partly closed at a valve.
Causes, from simplest to hardest
Work down this list in order. The first few cost nothing to check.
- Clogged aerator or showerhead.. Mineral grit collects in the tiny holes. Unscrew the tip, soak it in white vinegar for an hour, and rinse.
- A valve that is not fully open.. After plumbing work, a main or fixture shutoff is sometimes left a quarter turn closed. Open each fully.
- A failing pressure regulator.. Many homes have a bell-shaped valve near the main that steps pressure down. When it fails, pressure may drop or swing up and down.
- Scale inside older pipe.. Galvanized steel narrows with rust and mineral buildup over decades. Flow slowly shrinks until a shower feels like a trickle.
- A hidden leak.. Water escaping before it reaches your tap steals pressure. A meter that keeps turning with everything off is the warning sign.
- A partly closed or damaged service line.. The pipe from the street to the house can corrode or be crushed. It is rarer, but it reduces pressure everywhere.
The five minute checks you can do yourself
Start at the fixture. Unscrew the aerator on the faucet and look for grit. Hold the showerhead up to the light, and if you cannot see through most holes, soak it. This fixes more cases than anything else on the list.
Then find your main shutoff, usually where the water line enters the basement. Turn the handle slowly to confirm it is fully open. A gate valve with a round wheel handle should be spun all the way out, and a lever style ball valve should sit parallel to the pipe.
Finally, look at the meter. Turn every fixture off and watch the small dial or flow indicator. If it moves, water is going somewhere, and low pressure and a leak are probably the same problem. Our leak detection work uses listening gear and pressure tests to find the pipe without opening walls.
Quick diagnosis chart
| Pattern | Most likely cause | Next step |
|---|---|---|
| One faucet weak | Clogged aerator or cartridge | Clean the aerator, then the cartridge |
| Shower weak, sinks fine | Clogged showerhead or diverter | Soak the head, check the diverter |
| Hot weak, cold fine | Sediment in the water heater or a closed hot valve | Check shutoffs, then flush the tank |
| Whole house weak | Main valve, regulator or supply line | Check the main, then call |
| Pressure surges and bangs | Failing regulator or trapped air | Have the regulator tested |
| Meter moves with all taps off | Leak | Shut the main and call right away |
What Cleveland Water and Solon homes mean for pressure
Cleveland Water supplies Solon and says its water averages about 7 grains per gallon of hardness. Hardness leaves scale on aerators, showerheads and the inside of older pipe. If your pressure has sagged slowly over years, scale is a likely suspect, and cleaning the small fixtures is the first move.
Cleveland Water's construction manual also says the city owns the service line from the main to the curb stop, and the owner is responsible for the line from the curb stop to the house. If the weak flow is house-wide and your inside checks come up clean, a plumber can tell you whether the trouble sits in your section of the line. For anything on the street side, contact Cleveland Water.
Pressure regulators and why they matter
A pressure regulator holds incoming street pressure to a level your pipes and fixtures can handle. When the diaphragm inside wears out, the valve can stick open, which causes high pressure and banging pipes. It can also stick nearly shut, which gives you a weak flow across the house.
A simple gauge screws onto an outdoor hose spigot and shows static pressure. Compare the reading when no water is running to the reading while a tub fills. A big drop under load points to a restriction. A regulator is a short job for a plumber, and replacing a failing one early protects the water heater and appliance hoses from stress.
Hot water only is a different problem
When the cold side is strong and the hot side is weak, the problem is almost always in the water heater or its shutoff. Sediment in a tank can clog the outlet. A partially closed hot valve or a failed mixing valve can do the same.
A tank that has not been flushed in years may have a thick layer of mineral sludge at the bottom. You will hear popping or rumbling when it heats. A professional flush often restores flow, and if the tank is badly corroded, replacement may be the better value. See our notes on water heater repair if you suspect this.
When old pipe is the real cause
If your house has galvanized steel supply pipe, you may be living with a narrowed bore. Over decades, rust and minerals build up inside the pipe until it flows like a drinking straw. Cleaning does not last, and the long-term fix is to replace the pipe with copper or PEX.
The sign is pressure that is fine at the main and weak at the far end of the house, usually getting worse over years. Rusty or brown water on first use in the morning supports the diagnosis. A plumber can cut a short section out and show you the inside, which is more convincing than any explanation.
Before you call, gather these
- Which fixtures are weak.. One, several, hot only, cold only, or all.
- When it started.. Overnight, after work on the house, or slowly over time.
- What the meter does.. Whether it moves with every tap closed.
- What you already tried.. Cleaned aerators, opened valves, any gauge reading.
With those four answers, a plumber can usually narrow the cause on the phone and bring the right parts. We quote the price before work starts, and we offer same-day appointments when the schedule allows.
Help close to home
We handle pressure problems throughout the area, including Aurora and Twinsburg. If your pressure disappears all at once and water is also running somewhere it should not, close the main valve first and call for emergency dispatch.
Water pressure questions, answered plainly
Most homes do well with a reading between roughly 40 and 80 psi on a hose-bib gauge. Below that, showers feel weak. Above that, pipes and appliances are stressed and a regulator is advised.
Mineral buildup in the showerhead or a clogged diverter is the usual cause. Soak the head in vinegar, and if the flow stays weak, the shower valve cartridge may be worn.
Yes. Hard water leaves scale in aerators, showerheads and older steel pipe. Cleveland Water states its water is about 7 grains per gallon, so scale is a realistic cause in a Solon home.
It can be. If the meter keeps turning with all fixtures off, or you hear water running in a wall, a leak is likely. Shut the main and call.
If the problem is on the city side of the curb stop, Cleveland Water is the party to contact. A plumber can tell you quickly whether your side is clear.
We did not find a published Solon rule for regulators. The city's residential permit guide does list new plumbing lines and water heater replacement. Ask the city Building Department if you are unsure.
Sources and standards behind this page
Local facts and rules on this page come from these public sources. Check the current version before relying on a permit or code detail.