A FB member took some photos of the drains under the trailer. Seems to be a couple of changes, but I am no expert.
1. The low point drains, and tank overflow. Is this a new spot for the fresh water tank drain valve? And the overflow?
2. Alde Yellow Flapper drains. Dual Glycol drains?
3. Trying to sort out exactly where/what this is.
4 Air conditioner drain?
4. Don't know what this is.
Towed by 2014 Touareg TDi
While I cannot answer your question, you could do an easy test to decide . . . .
After your next trip
--- Use the Hot/Cold Low Point Drains
--- Then activate the two (if equipped) Alde Yellow Valves (one for furnace tank, one for extended HW)
Did you hear or see on the ground extra water discharge?
to 're-fresh' the tank's air cushion.
TV: '17 Colorado V6 Z71 4x4, Tow Package, GM Brake Controller
Adventures: 45 Nights: 270
2018 Nissan Titan Pro 4X "Big Bird"