We are getting a foul smell from the bathroom cabinet under the sink. Pulled the cabinet bottom panels, sprayed Lysol to no avail. Put 2 extra packets in the holding tank. Still stinks. Any ideas??? Smell only from under sink - everything dry. Next is Vinager spray.. Any ideas???
Thanks in advance.
Rob
2002 U320 (new owner 2 weeks)
Check the tank vent — they are usually high up under the sink on top of a PVC coming up from the floor and through the cabinet., and screw off the top of the PVC. They are a one way valve for venting the tank, and when they fail, they let tank oders from the respective tank into the coach. Very common issue as the coaches age. Black may be vented under the vanity, grey may be vented under kitchen sink.
Remove and take to "big box" store, they will have a suitable replacement, not expensive.
Vent plugged between roof and tank.... :( Place water hose down roof vent pipe and flush into tank, make sure drain valve is open if you run more than a few gallons of water....
What type of smell? Like the sewer or like a dead animal ?
Always wonder about some critter getting into the water compartment and crawling upwards and forward, then fall over dead, causing a smell. Snakes or mice.
FWIW
Dave
Start with Tim's observation.
Likely the diaphragm in the check valve is not sealing. Unscrew and clean. Blow/suck on it to verify operation (AFTER cleaning).
Brett Wolfe
Or, about $14 each at Lowes/Home Depot...:-)
Tim
Ah yes, sometimes known as "stinky coach syndrome".
The air vents are sometimes called "air admittance valves", generally one near each fixture. There's one under each of our sinks, one behind the toilet, and 2 behind the washer (one for the washer, one for the shower).
http://www.plumbingsupply.com/autovent.html (http://www.plumbingsupply.com/autovent.html)
The ones in our coach look like those below
(https://www.foreforums.com/imagecache.php?image=http%3A%2F%2Fwww.plumbingsupply.com%2Fimages%2Fauto_trap_vent.jpg&hash=9ec2c2d924fd7884d71cfd034cdaee08" rel="cached" data-hash="9ec2c2d924fd7884d71cfd034cdaee08" data-warn="External image, click here to view original" data-url="http://www.plumbingsupply.com/images/auto_trap_vent.jpg)
Michelle