Lexicon7,
We had a 1997 Lance Squire 4000 for 12 years and also have the original Lance brohures for 1996 models yet. Also have the big over 11' long floor 1997 Lance Legend 990 model we'd purchased/ordered new at the same time. I have scanned and saved the scan files on one of my puters in .jpg and I'd gladley email the files to you so you know exactly what the specs are for your 4000.
Your 1996 Lance Squire 4000 has a 33 gal fresh water tank, a 16 gal gray water tank, and a 14 gal black water tank. You may have pulled the tube that went from the shower basin drain to the gray water tank out or a water line. If I remember correctly, the tube would have gone from the underside of the shower base to a "Y" or "Tee" just above the entrance to the gray tank. 3 tubes go into that fitting and I can't remember if it was 2 "Y's" or a "TEE". One tube each that come from the kitchen sink, the bathroom sink, and the shower drain. I seem to remember mine being black plastic fittings for drains and kind of resembled the plastic plumbing used in homes but smaller in dia. Some of the the lines for fresh water were translucent semi-ridged plastic. Could you have a fresh water line you pulled off?
At any rate, I'd give Lance Camper in Lancaster, CA a call and asked them about it as they had built it and have all the data and info. They are very good about helping. It will sure eliminate the guesswork!
