zettagirl2002@yahoo.com Report post Posted October 5, 2009 I've had my 1999 Western RV Alpine since May. The gray tank never empties completely, according to the gauge. I am open to any and all suggestions. Thank you very much. Rosetta Share this post Link to post Share on other sites
bebop Report post Posted October 5, 2009 no doubt your guage is faulty. they often get junk across the contacts to actuate your lights and need to be cleaned periodically. this also happen with the black tank. Some people suggest dumping a lot of ice cubes and some water in the tank And then drive around with it and that will clean the contacts. there are also chemicals available at your RV store that will clean the contacts. Bebop, San Jose, Ca Share this post Link to post Share on other sites
kalynzoo Report post Posted October 5, 2009 Probably the easiest possibility would be gunk dried on the side of the tank being registered by the sensor. After a trip I usually fill the gray and black tank to 3/4 with water, add some pinesol (any soap will probably do just fine) and drive the last leg of the trip, in my case about an hour on the road. Then I dump. A similar process with your gray tank may clear the dry stuff. Otherwise the cause, such as a bad sensor, would require more technical service. Good Luck. Share this post Link to post Share on other sites
wolfe10 Report post Posted October 5, 2009 Here is another thread right here with some good advice on the same subject: http://community.fmca.com/index.php?showtopic=445 Share this post Link to post Share on other sites
