Funny you mention the knees—I swear mine creak louder than the cabinet doors these days. I’ve always wondered, do you think those slow leaks at the valve are more likely to go unnoticed than a trap leak? I feel like the connections are sneakier, but maybe I’m just paranoid after finding a puddle under my kitchen sink that turned out to be from a loose supply line. Ever tried those colored leak detection tablets, or do you just stick with the flashlight routine?
I get what you mean about the sneaky leaks at the valve, but honestly, I’ve had more trouble with trap leaks over the years. Maybe it’s just my luck, but when a trap goes, it tends to drip right onto the bottom of the cabinet and you don’t notice until there’s a musty smell or the wood starts swelling. Valves, at least in my experience, usually leave a telltale mineral stain or crust if they’re leaking slow.
I’ve never bothered with those colored tablets—seems like overkill unless you’re dealing with a toilet or something you can’t see behind. I just run my finger along the connections and check for moisture every couple months. Flashlight helps, but sometimes it’s just about getting your hand in there and feeling around. Found a slow drip that way last winter, saved myself a bigger headache down the line.
Drips from a trap are sneaky, I’ll give you that. The worst ones seem to happen right where the plastic meets metal—those cheap slip joints with the thin washers almost always loosen up over time, especially if folks are tossing stuff under the sink and jostling things around. Had a call last year where someone lost half their cleaning supplies to a slow trap leak before they even noticed. The bottom of their cabinet was basically compost by the time I got there.
But I still think valve leaks are underestimated. Sure, you might get a mineral crust or a little green stain, but I’ve seen more than one “just a crusty valve” turn into a full-blown spray when someone tries to shut it off in an emergency. Those old multi-turn valves are notorious for failing right when you need them most.
I’m with you on the tablets though—never saw much point unless you’re testing for something behind a wall or in a spot you can’t reach. A good old flashlight and your hand will catch 90% of problems early, if you remember to look.
Those crusty valves are a nightmare, I agree. Had one snap off in my hand once—water everywhere, tenant freaking out.
You ever tried switching to quarter-turns across your places? I started swapping them out after that mess, but curious if anyone’s had issues with those too.“Those old multi-turn valves are notorious for failing right when you need them most.”
- Had a similar situation with a multi-turn valve—tried to shut it off, and the stem just spun. Ended up with a slow leak that turned into a full-on drip overnight. Not fun.
- Swapped a few out for quarter-turns, but I’m not totally sold yet.
- They’re definitely smoother and easier for everyone to use.
- But I’ve had one start seeping at the packing nut after about two years. Not catastrophic, but still annoying.
- From what I’ve seen, leaks at the connection points are usually worse than a drip from the box itself. Connections can spray or flood if they go bad, while a box drip is more of a slow creep (unless you ignore it).
- I do wonder about the environmental impact of tossing all those old valves though... seems wasteful, but maybe it’s worth it for peace of mind.
- Anyone else notice quarter-turns sometimes get stiff if they’re not used for a while? Or is that just cheap brands?
Honestly, neither option feels perfect, but at least quarter-turns don’t crumble in your hand when you need them most.