I thought I would post my '2 cents worth' on TT faucets. I have had pop-ups, TT's, Motorhomes (2 of each type) from different makers and years...but, the common thing in all of them is CHEAP faucets. Now, I cannot speak for $100k + rigs, but the rest probably have the same items that need replaced ASAP from Lowes or similar stores.
Why? Well, we had our 2004-26DS out for it's first trip in the spring of 2006 (it was a dealer lot demo for about 1-1/2 years, and never saw a campground) and we had a mishap that could have caused more damage than it did, if my wife had not been there to stop it.
The bathroom sink faucet handle shot off and let gallons of water spray onto the floor and out into the kitchen. My wife reacted as quickly as possible and ran outside to turn the water off at the shutoff valve, on the post. It took a lot of towels to get the floor, cabinets and under the kitchen drawers relatively dry. We later bought a small wet/dry vac for all purpose cleaning and emergencies.
What happened? Well, the cheap faucets have cheap plastic parts and the compression ring under the knob merely cracked and allowed the knob to just pop off on its own while under constant water pressure...good faucets use metal or at least better quality parts. I replaced the kitchen faucet with a nice high neck one and put a laundry room-type (with removable hose fitting for the tip) for the bathroom sink. I merely check the shower, and outside shower faucets regularly for cracking.
This made for an interesting first outing...if my wife had not been there to react to the noise of the knob hitting the ceiling and the water pouring from under the door, we could have had hundreds of gallons of water flooding the trailer.
In addition to upgrading your faucets, you may want to turn off the main water connection if you are going to be away for a few hours.