Quote:
Originally Posted by villagetinker
Take a look inside the garage(?) and see if there is a pipe on the inside and follow to the end. If there is no visible pipe, then it could be a drain from the AC or water heater. I also agree with above about a water softener.
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Unfortunately the interior part of the pipe is behind drywall so difficult to trace. The AC drain is readily visible on the other side of garage closer to air handler so it’s not that. I don’t think there ever was a water softener in the house but it is pretty close to the water main shutoff valve that is behind a panel near the front of the garage in about the place that a water softener would be installed so I wonder if it’s just there as part of the builders design in case a water softener were to be installed at a later date after the house was built.