The leaking water heater will be replaced. What do I do with it until the installation of a new heater can be done? The leak just started and is still a slow leak.
It all depends upon where the leak is. There4 should be a catch pan below the water heater with a drain line running outside. If there isn't one make sure the installers put one. Also you could turn the heater off and shut off the water supply (in that order).