My house is all electric, so definitely not a gas leak.
When I do turn the water supply off into the house at the meter, the hissing stops. But even with the water on to the house, the meter isn't moving at all.
I checked the meter almost an hour ago and noted the position of the hour...
Last night I started hearing a hissing noise coming from the area between my kitchen sink, dishwasher and the wall the dishwasher backs against. There's no leak under the sink. No leak under the dishwasher. I turned the water supply off to the house and the hissing stops. I'm on a concrete...