I get the water meter trick, but I’ve found it’s not always foolproof—especially in older houses where the meter’s a bit... temperamental. Once, I spent half a Saturday convinced I had a leak, only to realize the meter was just slow to reset. Sometimes, just putting a few drops of food coloring in the toilet tank tells you more than any fancy meter reading. Not glamorous, but it’s saved me a few bucks and a lot of stress. Those hissing sounds can be anything from a loose washer to a neighbor’s midnight shower—never a dull moment.
I get what you mean about the food coloring trick, but I’ve actually had it miss a slow leak once.
Ever tried shutting off the supply line to isolate the noise? Sometimes those hissing sounds are from a tiny pinhole in a pipe behind the wall, not just the toilet or washer. The old meters can be a pain, though—totally agree there.“Sometimes, just putting a few drops of food coloring in the toilet tank tells you more than any fancy meter reading.”
That food coloring trick is handy, but yeah, it’s not foolproof. I’ve seen it miss a couple of slow leaks too—especially when the leak’s so tiny that the dye just doesn’t move fast enough to show up. I actually had a case where the hissing was driving the homeowner nuts, and it turned out to be a pinhole in a copper line behind the drywall. The sound echoed through the whole bathroom, so everyone swore it was the toilet.
Shutting off the supply line is a solid move. I usually go one step further and check each fixture individually—sometimes you get lucky and isolate it right away, but other times you’re chasing ghosts. Those old meters are a headache, especially if they don’t have a low-flow indicator. Ever tried using an infrared thermometer along the wall to spot cold spots from leaks? Not perfect, but it’s helped me narrow things down when nothing else worked.
Yeah, chasing those mystery leaks is a pain. I’ve had tenants swear it was the toilet too, only to find out it was a tiny split in the supply line halfway across the room. Infrared thermometers are pretty clever—never thought of using one for leaks, but I can see how that’d help, especially in older places where you just can’t trust what’s behind the walls. Good thinking sticking with it. Sometimes it really does feel like you’re hunting ghosts...
That weird hissing sound behind the bathroom door...
Funny how often folks are convinced it’s the toilet, right? I’ve lost count of how many times I’ve pulled a tank apart, only to find the culprit was hiding somewhere completely different. Those supply lines can be sneaky—especially the braided ones that look fine on the outside but have a pinhole spraying just enough to make you question your sanity.
Infrared thermometers are handy, but I’ll admit, I’m still partial to the old-school trick of running my hand along the pipes (when it’s safe, obviously). Sometimes you just can’t beat getting up close and personal with the plumbing. That said, in older houses where you’re dealing with plaster walls or weird additions from decades past, tech definitely saves some headaches.
Ever had one of those leaks where you’re sure it’s coming from above, but after tearing half the ceiling down, it turns out to be a cracked fitting under the floor? Had a job last winter where the “hissing” was actually a slow leak in a copper line rubbing against a joist—sounded like it was everywhere and nowhere at once. Took hours to track down.
Curious if anyone here has tried those acoustic leak detectors? I’ve heard mixed things—some swear by them, others say they’re more trouble than they’re worth. Wondering if they’re actually useful for these ghost leaks or just another gadget collecting dust in the van...