[dennis hogan]

Bob I might give tankTechsrx a shot also. But I'm thinking like you the only one's that Work is the Fresh tank and Battery.
The sensors are a good Idea if they only worked.

Mike although it would be nice to see how much is in your tank I've figured out that 4 showers (2 each for my wife and I) and associated sink use is a good fill-up for my 18 gallon tote. You just wonder about it if you have guest's spend the weekend.