gotta love waking up to water dripping from your ceiling...
for some reason we have sheetrock on the ceiling..but a dropped ceiling under that, so i had to cut the soaked sheetrock to find where the leak was coming from, and it was leaking through the floor from upstairs, so i went up and its below our dishwasher. pulled it out and cant find where its leaking, good thing is. i cut off the hot water under the sink that has a line out to the dishwasher and the hissing stopped. and so did the leak, so atleast we know where its coming from, and its not in the wall or something.