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Water bills are easy to ignore. They arrive, they get paid, and they vanish into an inbox. So the first sign of trouble is usually a vague feeling that last month’s was lower. Then you check, and it was. By forty dollars, maybe more, with the same people doing the same things in the same house.
A jump like that has a cause, and most of the time the cause is cheap. Finding it takes an afternoon and a bit of patience. The exception is a leak you can’t get to, like a supply line under a concrete slab, and for that a plumber in Miami Shores residents hire can locate the spot with detection equipment instead of a jackhammer and a hunch.
Gallons, not dollars
The dollar total is an unreliable witness. Rates change, fees get added, and one billing period can run a few days longer than the last. Gallons are what actually went through the pipe. Put this month’s figure beside the same month last year, because South Florida summers push usage up on their own: more laundry, more showers, sprinklers running longer.
A single high month that drops back was probably a houseguest or a pool top-off. A number that rises and stays there is the one to chase.
The hour with the meter
This is the simplest test there is, and most of it is sitting around.
Turn off everything that uses water. Irrigation timer, dishwasher, washer, and nobody flushes. Walk out to the meter, usually in a box near the street, and lift the lid slowly, since ants and spiders like it in there. Many meters have a small triangle or dial that turns whenever any water moves at all. Write down the reading, go back inside, and check again after 30 to 60 minutes.
If it moved, water is going somewhere. If it didn’t, your pipes are holding, and the bill has some other explanation, possibly an estimated read the utility can clear up. One wrinkle: an automatic ice maker can refill on its own and nudge the dial.
Where it usually turns out to be
Toilets, far more often than anything else. The rubber flapper at the bottom of the tank wears out over the years, and once it stops sealing, water seeps into the bowl all day and all night with hardly a sound. You can check it in about fifteen minutes: a few drops of food coloring in the tank, no flushing, and a look at the bowl afterward. If the color shows up there, the flapper’s the culprit. It’s a few dollars at any hardware store, and most people can swap one in without tools.
If the toilets pass, head into the yard. Hose bibs drip more than people realize, and an irrigation valve that doesn’t quite shut can run for days without anyone noticing, especially when the zone comes on at 5 a.m. and the whole house is asleep. Sprinkler heads get clipped by a mower or buried under mulch, and from then on they mostly water dirt. A pool with an auto-fill is worth a look too, though I’d save it for last. It tops itself up, so a slow crack never shows as a dropping water line.
Don’t try to test everything at once. Shut off one thing, say a single toilet’s stop valve or one irrigation zone, and run the meter test again. If the dial still moves, cross that one off and try the next. When it finally goes still, whatever you just shut off was your leak.
Pressure is a separate question
People often assume weak water pressure means a leak. Sometimes it does, but the link is shakier than it sounds. A clogged aerator, a valve that isn’t fully open, or mineral scale inside a showerhead can cut flow all by themselves, and plenty of water pressure problems never involve a leak at all.
It’s the combination that deserves attention. A shower that got weaker, a bill that climbed, and a meter that moves when the house is shut down. Any one of those has a boring explanation. All three together are much harder to explain away.
Leaks you can’t see
Many homes here sit on concrete slabs, and in some, supply lines run through or beneath them. Pipes buried like that can wear out over decades, depending on the material and the age of the house. When one fails, there’s no tidy puddle to point at. You get hints.
A patch of tile that feels warm under bare feet can mean a hot water line is leaking below it. A faint hiss or trickle in a silent house with everything off is another. So is a musty smell you can’t trace, baseboards that swell or stain, or one stretch of grout that stays dark while the rest dries.
Those signs don’t prove anything on their own, and a damp spot near a shower might just be a failing seal. But if the meter test said water is moving and the toilets and outdoor taps came back clean, that’s when the hidden possibilities move to the top of the list.
What can wait
A weeping faucet, or a toilet that runs a few seconds after flushing, can usually wait until the weekend. They waste water and tend to get worse slowly, but nothing is at risk by Friday.
Other things shouldn’t wait. A meter that keeps turning after you’ve ruled out toilets, irrigation and outdoor taps. A floor that stays warm or damp. A ceiling stain that keeps growing. The sound of running water when nothing is on. The longer water moves through a structure, the more subfloor and framing it soaks, and the meter counts every gallon in the meantime.
If you’ve never located your main shutoff valve, do it this week, before you need it in a hurry. Closing it and checking the meter also gives you a useful answer. If the dial stops, the leak is inside the house. If it keeps going, the water is escaping before the valve, which is the utility’s responsibility, not yours.
Whatever you find, write it down. Meter readings with times, the warm spot in the hallway, the odd noise near the water heater. Even a rough page of notes helps whoever you call next, whether that’s the utility or a plumber such as Mr. Rooter Plumbing of Miami, and it saves you from trying to describe something you only half noticed.