Originally Posted by the happy camper
you have to take off the cover under the table, it's screws at the 4 corners under the carpet. you will see the plastic tank and connection at you right.
That is quite a difference from the classic Trilliums. The 1300's had a water tank in either the curb side or the kitchen side. It was accessed through the top hatch.
I was going to suggest drilling 1/8" holes at the low point, directly ahead of, and behind the wheel wells.