2 days ago our carpet started leaking. None of our pluming goes underneath it which amazes us. We have no money for plumbers or anyone to check on it. We do have a water heater next to it but its in ground. and we check on it every 2 days and there are no leaks leading to it.
Here's a checklist to follow mate 1) if wettest spot near external wall, check your roof gutters, has it been raining recently? Gutters or Downpipes blocked? 2) if not near external wall, check roofing/tiles, recent rains? Cracked tiles or tile capping? Loose sheeting(if applicable) 3) is it near bathroom? If your shower or bath faucet has a leak behind the tiles it can run down the inner part of the wall and emerge metres away, follow the wet carpet trail (wear only socks as it's easier to feel) walk in a circular fashion outwards from wet patch, if harder to find change socks and stand for a few seconds each step to give water time to seep up (tissues or toilet paper are good too) 4) Check all taps, tap washers (easy to replace and about 20cents each, shower heads and tighten if needed, Teflon tape to seal 5) check that all taps are turned off and go to your water meter and see if dial is turning, if it isn't you have no leaky plumbing, if it is you need to investigate every inch of roof and basement if you have it, 6) check your washing machine hose is situated in drain and that it isn't split, spilling over etc, are your fridge and freezer defrosted regularly? Mate it's water, if it doesn't smell the health risks are very minimal, though mould is a problem, air house out and keep towels down till fixed, hope you find the leak, good luck
You have either water leaking under the floor, or from the ceiling above the carpet.
I really hate to tell you this but it sounds to me like a broken pipe under your floor. It can be broken fifteen-twenty feet away,but if the room that has the wet carpet is the lowest point of your house, that is where it will settle. That happened to us. One of those real old clay 4 inch pipes used when the house was built, broke in two. Another thing that can damage your pipes big time is liquid drain openers. Throughout the years we lived in this house, my husband continued to use those products against my warnings. The Drains opened up all right...Sixty feet of them! It dissolved the bottom half of the pipes completely away. That cost us seven thousand dollars and a months worth of jack hammering, repair guys, and headaches. You really need to check it before it runs into tons of money to repair. You could also call your water company to come out and check their meter. The meter tells if there is a water leak somewhere. Who knows, it could be the city's broken pipe and it is settling onto your carpet.
Carpet doesn't leak. Period. If it's water, it's coming from somewhere. Not finding the problem and leaving the carpet wet will cause: Mold to grow on the carpet. The carpet will delaminate (the layers of woven material and backing will come apart). Your pad will get really stinky. This is a potential health hazard, at minimum it could cause allergies and rashes. I'd say this isn't something to ignore, the moisture is coming from SOMEWHERE, you need to figure out what is causing it and stop it. Then, you'll need to dry out the carpet. If the pad is wet you need to pull the carpet off the tack strips that run around the edges of the room and remove any pad that is wet. The pad will need to be replaced and the carpet restretched into the room.