We (the dogs, not me
) use the UgoDog.
One time when we travelled, I put it (washed) in a big clean garbage bag.
But to answer your question, I would suggest bringing both washable & disposable pads on your trip.
And testing out the disposables before hand.
You could buy one of those wet proof bags that parents use for wet washable diapers.
They sell them in Walmart in the baby section, they are usually a brightly printed fabric.
Maybe put the washable wee wee pad in there?
One time when we travelled, I put it (washed) in a big clean garbage bag.
But to answer your question, I would suggest bringing both washable & disposable pads on your trip.
And testing out the disposables before hand.
You could buy one of those wet proof bags that parents use for wet washable diapers.
They sell them in Walmart in the baby section, they are usually a brightly printed fabric.
Maybe put the washable wee wee pad in there?