Leak in ceiling of garage. Could not get it to reoccur, had to cut drywall. Found the shower caddy was causing water to run over the top of the tub and down behind the trim when the shower was activated. It was getting soaked up by insulation in the ceiling of the garage. Water heater was located under the basement stairs. Was framed in and covered up by previous owner. Door to access under stairs is too small to replace the water heater. Will require a carpenter to build in a proper wall as that wall is load bearing. No further issue at this time.