Key takeaways
- Learn where your main shutoff and fixture shutoffs are before you need them, and make sure everyone in the house knows too.
- A water bill that climbs with no change in habits is often the first sign of a hidden leak.
- Pipes freeze where cold air reaches them: exterior walls, crawl spaces, garages and hose bibs. Prevention is cheap compared with a burst pipe.
- Pressure that is too high does as much harm as pressure that is too low, and a gauge on a hose bib tells you which you have.
- Hard water is common in Southwest Ohio and leaves scale on fixtures and in water heaters.
How water problems show up in a house
Most plumbing trouble announces itself quietly. A faucet drips, a bill creeps up, a ceiling gets a faint tan ring, the shower feels weaker than it used to. These signs are easy to put off, and that is the problem. A small leak inside a wall can rot framing, feed mold and ruin flooring long before anything drips where you can see it.
A few local conditions shape what plumbers find in Southwest Ohio homes. Winters bring stretches of hard cold. The region has plenty of older houses where the plumbing has been added to, patched and rerouted over many decades. Many homes have basements, which means pipes running along cold exterior walls and through unheated spaces. And the water here is hard, so mineral scale builds up in fixtures, pipes and water heaters.
None of that is cause for worry. It just means a little attention a few times a year goes a long way.
Know where your shutoff valves are
If you only do one thing after reading this guide, find your shutoffs. When a pipe splits or a supply line fails, the time between noticing and stopping the water decides how much damage you get.
The main shutoff is where the water line enters the house. Look in the basement or crawl space near the wall facing the street, in a utility room, or near the water heater. You will see either a lever handle, which is a ball valve, or a round wheel handle, which is a gate valve. Ball valves are quick: a quarter turn closes them. Gate valves in older homes can seize or break if forced, so turn them gently once or twice a year to keep them free. If one will not budge, do not lean on it. That is a job for a plumber, and replacing a failing main shutoff is worth doing before an emergency.
Fixture shutoffs sit under sinks and behind toilets. Turn each one off and on occasionally to be sure it works. Washing machines, water heaters, outdoor hose bibs and the ice maker line usually have their own valves too.
The valve at the meter or at the street belongs to the water utility. Do not operate it yourself.
A paper tag on each valve helps, and so does showing everyone in the house, including teenagers and anyone who house-sits.
Finding leaks you cannot see
Hidden leaks show up in your water use before they show up on your ceiling. Watch for a bill that rises without a change in how you live, a meter that moves when every fixture is off, a toilet that refills on its own, the sound of running water in a quiet house, or a musty smell in a cabinet or basement corner.
Two simple tests find many leaks. The meter test checks whether water is moving through your system when nothing should be using it. The toilet dye test checks the most common source of silent water loss in a home. Both are covered step by step in How to find a hidden water leak.
Also check the places leaks like to hide: under sinks, around the base of the water heater, behind the washing machine and refrigerator, and on basement ceilings below bathrooms. Warm spots on a floor, or damp carpet over a concrete slab, can point to a leak in a pipe under the slab. That needs a plumber with the right equipment to locate it.
Frozen pipes in Ohio winters
Water expands as it freezes, and a pipe has nowhere to put that expansion. The split often forms not at the ice itself but in the pipe section between the ice and a closed faucet, where pressure builds. You may not know it split until the ice melts and water starts to flow.
The usual trouble spots are pipes in exterior walls, in unheated crawl spaces and garages, along the rim of a basement where the house meets the foundation, and outdoor hose bibs. A kitchen or bathroom sink on an outside wall is a classic.
Prevention is mostly simple. Disconnect garden hoses in the fall. Insulate exposed pipes in cold spaces. Seal gaps where pipes or cables pass through exterior walls. Keep the heat on, open cabinet doors under sinks on outside walls during a hard freeze, and let a faucet drip a thin stream when the forecast is severe.
If a pipe does freeze, open the faucet and warm the pipe gently with a hair dryer or warm towels. Never use a torch or open flame. If you see a split or water where it should not be, shut off the main and call a plumber. The full list is in Preventing frozen pipes in an Ohio winter.
Water pressure problems
Pressure is the force that pushes water through your pipes, and it can be wrong in either direction.
Low pressure has several possible causes. If only one faucet or showerhead is weak, the likely culprit is scale or debris clogging the aerator or showerhead, which is an easy cleaning job. If every fixture is weak, look at whether the main shutoff is fully open, whether a pressure reducing valve is failing, or whether the neighbors have the same problem, which would point to the water supply rather than your house. In older homes with galvanized steel pipe, corrosion on the inside of the pipe can slowly narrow it and cut flow throughout the house. The fix there is replacement of the pipe, not adjustment.
High pressure is harder to notice and does more quiet harm. Banging pipes, dripping faucets, toilets that run, a relief valve on the water heater that drips, and appliances that wear out early can all trace back to pressure that is too high. Most homes do well in the range of roughly 40 to 80 psi. You can check yours with an inexpensive gauge that screws onto an outdoor hose bib. Read it when no water is running.
Many homes have a pressure reducing valve near the main shutoff, often a bell-shaped brass fitting. These wear out. Adjusting or replacing one, and sizing an expansion tank where one is needed, is work for a licensed plumber, because the settings affect the water heater and every fixture in the house.
If pressure drops suddenly, or the water looks cloudy or brown, treat that as a sign to call someone rather than a nuisance to live with.
Hard water and your fixtures
Much of Southwest Ohio has hard water, meaning it carries dissolved calcium and magnesium picked up from limestone and gravel underground. It is not a health concern for most people, but it leaves white, chalky scale on faucets and showerheads, spots on glassware, and a crust on heating elements. Inside a water heater, scale builds on the tank bottom and makes the unit work harder.
How hard your water is depends on where you live and which utility serves you. Your water provider's annual quality report lists it. For signs, cleaning tips and how softeners work, read What hard water does to your plumbing. If you want to learn about water heater care or treatment systems, see water heaters and water treatment.
When to call a plumber
Some plumbing jobs are fine for a careful homeowner: replacing a toilet flapper, cleaning an aerator, closing off a hose bib for winter. Others are not.
Call a plumber right away, after shutting off the main if you can reach it safely, for a burst or split pipe, a leak you cannot stop, no water at all, sewage smells or backups, discolored water that does not clear, or any leak near the electrical panel. If water is pooling on a ceiling or dripping through a light fixture, stay out of that room and switch off power to that area from the panel only if you can do so without standing in water. Water and electricity together are dangerous.
Call a plumber, without panic, for a meter that keeps moving after you have ruled out toilets and fixtures, pressure that is consistently too high or too low, and stains that keep growing. Early repair is nearly always smaller than late repair. For leak detection and repair, see leak repair, or contact a plumber to describe what you are seeing.
Frequently asked questions
Where is my main water shutoff usually located?
In most homes it is where the water line enters the house, often in the basement or crawl space on the wall facing the street, or in a utility room near the water heater. Some homes also have a valve outside near the meter, but that one belongs to the utility.
Can a small leak really raise my water bill?
Yes. A toilet that leaks into the bowl or a dripping fixture runs around the clock, so even a slow leak adds up over a billing period. A bill that rises with no change in your habits is worth investigating.
Is high water pressure a problem?
It can be. Pressure that is too high stresses pipes, fixtures and appliances, and it can cause banging pipes, dripping faucets and a leaking water heater relief valve. A pressure gauge on a hose bib will tell you where you stand.
Should I let my faucets drip in winter?
During a severe cold snap, a thin steady drip from a faucet on a vulnerable line helps. Moving water is harder to freeze and the drip relieves pressure if ice does form. It is a backup measure, not a replacement for insulating pipes and keeping the heat on.
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