Dan your 74 , 31 ft. has several drains, fresh water, grey water, black, and water heater, among others. Go to your owners manual and it will tell you how and where. If you don't have an owners manual, you are going to need one. Try your dealer first, then ask this list, then for sure , you can probably get one at the flea market sale at Bismarck the end of this month. There will be over 2000 airstreams, and over 5000 airstreamers. There is also a good RV Maintenance book at Camping world and other RV stores for about $19.95 by Bob Livingston. It will show where most drain valves are located and the big scheme of things. If you go to the VAC homepage ; www.airstream.net and surf around, you will find links to just about anything Airstream. Reproduced manuals can be ordered, if you can't find a real one. Now the ball is in your court, Dan, have fun. Bill Scott 61 Bambi 66 Trade Wind
bought 1974 31 ambassador from plumber now i can't find drain for tank Help
