I was cleaning the crawlspace under the house and discovered two 3/4 inch white PVC pipes that run across the crawlspace buried under ground (4-8 inch deep) and terminate at the perimeter foundation footing.
One of the pipes has a T-connection in the middle facing upwards, the top end is not capped and is filled with dirt.
I wonder if this was done on purpose (for some kind of drainage or something) or this is a part of abandoned yard irrigation system left by when they build a house addition
Does anybody know any method that would require such PVC pipes underground in the crawslapce?
Pipe ends at foundation footer
(next to the pipe is a big root that goes under foundation as it seems)