I hear you on the cheap meters—not perfect, but they’re a heck of a lot better than guessing. I’ve had mixed luck with those, but sometimes just knowing where to poke around is half the battle. Borrowing tools is underrated, too. I once used my dad’s old humidity gauge and it actually helped me find a leaky pipe behind the washing machine. Sometimes you do end up opening up a wall, but at least you feel like you tried everything first. No shame in being cautious, especially when repairs get expensive fast.
Borrowing tools is underrated, too. I once used my dad’s old humidity gauge and it actually helped me find a leaky pipe behind the washing machine.
That’s a great point—sometimes the “old school” tools get the job done just as well as the fancy new gadgets. I’m a big fan of using what you have before buying more plastic or electronics that’ll end up as e-waste. But I’d add that if you’re dealing with musty smells, it’s worth checking for hidden sources of moisture, like condensation on pipes or even poor ventilation. Sometimes it’s not a leak, just bad airflow, and a simple vent or dehumidifier can make a world of difference. No need to tear out drywall unless you’ve ruled out the easy fixes first.
No need to tear out drywall unless you’ve ruled out the easy fixes first.
Totally agree—jumping to demolition feels like overkill unless you’re sure it’s not just a ventilation thing. I’ve been burned before by assuming the worst when it was just a blocked vent behind some boxes. Still, I do wonder if those old humidity gauges are as accurate as we hope? Either way, using what you’ve got before buying more stuff makes sense. Sometimes the simplest fix is the most eco-friendly one.
I get where you’re coming from, but sometimes those “simple fixes” just mask a bigger issue. I once ignored a musty smell thinking it was just poor airflow, only to find out later there was a slow leak behind the wall. Quick checks are good, but if the smell lingers after you’ve aired things out and moved stuff around, it might be time to dig deeper—even if that means pulling back some drywall. Not ideal, I know, but sometimes necessary.
Had a similar situation last year—walked into the basement and got hit with that “old gym bag” smell. At first, I figured it was just humidity, maybe the dehumidifier needed emptying. But like you said,
My worry is always: how far do you go before it gets expensive? I hate tearing open walls if it’s just a minor thing. Has anyone actually found a small fix after all that, or does it usually mean bigger trouble once you start poking around?“if the smell lingers after you’ve aired things out and moved stuff around, it might be time to dig deeper.”