The leak was with the air regulator; in my coach on a firewall in the engine compartment. One possible clue to the leak was weeks earlier the toilet would hold the water. It would leak out over a day. I thought there might be a way to increase the air pressure to the flapper to keep the seal tight. I was unable to find an adjustment.
Now with the air fixes the toilet holds the water. A lot to learn with a complicated machine.
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David and Teresa
1999 Newell 45' Coach #513
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