Any ideas for second pipe

[Steven J. Wessler]

Main water supply on left with regulator. 2nd. pipe could have been mistake and/or future line for?
But there is a T with another shut-off. Would a plumber have left the valve behind for no reason?
Any ideas what it could be for?

[Gary Farnsworth]

Sprinklers?

[Steven J. Wessler]

Gary,
That was a thought, home was built in 2,000 and did not see other homes in the area with sprinklers. Also I questioned a 3/4" line but could have just been following up with the same material to exterior.

[Steven J. Wessler]

Christopher,
Not sure I understand? Just stubbed through wall with no valve on pipe.

[Jeffrey R. Jonas]

Originally Posted by gfarnsworth

Sprinklers?

... Or exterior hose bibb that froze/burst and was eliminated? 3/4" would be appropriate for either.

[Steven J. Wessler]

Jeffrey,
No signs of damage. Tried the snake camera and the line did a 90* downturn and the lens could not get by.

[Michael Roberson]

Possibly a failed water main? Whatever it is, It is abandoned, probably for a good reason.

[Christopher Currins]

But there is a T with another shut-off. Would a plumber have left the valve behind for no reason?

Originally Posted by swessler

Christopher,
Not sure I understand?

Used to drain water line.

[ROBERT V. YOUNG]

Auxiliary water line or system like sprinklers or pool.