[DQDick]

Yes spell check got me. We use a backflow preventer like restaurants and others have to put on an outside or mop sink faucet available at most hardware stores and I have it attached to the flush inlet in the convenience center. On some older models there was a patch on the wall of a bedroom cabinet next to the bathroom that had the vacuum breaker in there. I saw one older model with the bathroom of the side isle that had the hatch in a closet or pantry, I don't remember which, down stairs on the wall of the bathroom. Several members that had those set ups found that the patch didn't always hit the breaker and had to open the hole further to get to it. Good luck on your search.