What That Musty Smell Under the Sink Was Really Hiding

How a simple leak detector helped one family prevent kitchen damage before the holidays

We received this story last week from Jennifer R., a homeowner in Oregon who shared how a subtle leak almost ruined her kitchen cabinets—right before the holidays.

“I Thought It Was Just Humidity”

“About two weeks ago, I started noticing a faint musty smell under our kitchen sink.

I assumed it was just from storing damp sponges or maybe some older cleaning supplies. The cabinet floor looked dry, so I didn't think much of it.

But then I noticed the wood at the very back was starting to warp slightly. No puddle. No drip I could see. Just that smell and a bit of swelling.”

A Leak That Comes and Goes

Jennifer checked the pipes and wiped everything down. It looked fine.

“I thought maybe it was a spill or just old house stuff.

But the smell kept coming back—especially after running the dishwasher.”

That's when she decided to try something different: placing a small under-sink leak detector near the back corner of the cabinet.

The Alert Came the Next Day

“We ran the dishwasher that night as usual. I forgot about the sensor—until I got a phone notification during cleanup.

It said: 'Water detected in Kitchen – Left Cabinet.' I opened the door and sure enough, the detector was sitting in a thin, invisible puddle.”

Turns out the dishwasher drain hose had a tiny crack that only leaked under pressure. It wasn’t visible, and the water would evaporate quickly—but it was enough to start damaging the wood and invite mold.

A Small Device, a Big Save

Jennifer had installed the AquaNet-BD water valve  just the day before. It caught the leak early enough that no repair was needed—just a quick hose replacement.

“We probably saved our cabinets. And with the holidays coming, I can’t imagine dealing with water damage right now.”

Smart Prevention You Don't Have to Think About

Jennifer has since added a second detector behind the washer and plans to connect her leak sensors to a smart shutoff valve next.

“I like that it just works quietly. I didn’t even remember it was there until it sent the alert. Honestly, I think every kitchen should have one.”

Stop Leaks Before They Become Disasters

Not every leak starts with a puddle. Sometimes, the first sign is a smell. Or warped wood. Or a sudden spike in your water bill.

Whether it’s under the sink, behind the washer, or near your water heater, leak detection doesn’t have to be complicated—or expensive.

👉 Explore the Smart Home Water Protection System
👉 Shop the Under Sink Leak Sensor Jennifer Used