I bought a foreclosed house that already had drip irrigation installed. The system can be turned on via a control panel in the garage. The previous owner was angry that he lost his house so he snipped many of the irrigation tubes before leaving. I've ripped out most of the snipped tubes and thrown them away, in preparation of redoing the whole drip irrigation system. What remains are these tower like structures spaced about 7 feet away of each other.
- What purpose do these serve?
- Are they connected to my water supply? So should I be wary of flooding the backyward by pulling these things out?
- Should I replace them with new ones or are they too expensive / time consuming to replace?