Preparing (very early) to winterize an irrigation system. Aside from some Google searching and a few YouTube videos, I have no knowledge of irrigation systems generally, or this irrigation system specifically.
I have attached two pictures of the inside of the box containing the zone valves. One picture is clean. The other picture is marked up. In the marked-up version, I have annotated the water lines I have found (some of which are obscured by dirt in the picture). I expect there are other lines extending from the valves in the box, but I have found it challenging to unearth all the equipment inside the box, preventing me from locating all of the lines.
I think I need to find a threaded port downstream of a backflow preventer valve, so that I can connect the air compressor to that threaded port. I thought I would find that threaded port inside the pictured box. But so far, I have failed at that.
My first, very specific question- with the limited information in the pictures I've given, can anyone identify the two items I marked with a question mark?
More generally, any thoughts to get me on the right track here? Do I need to keep digging out the contents of the box to find the connection point for the air compressor? Or do I need to look elsewhere?
Thanks in advance for any help you can offer!
Neil
I have attached two pictures of the inside of the box containing the zone valves. One picture is clean. The other picture is marked up. In the marked-up version, I have annotated the water lines I have found (some of which are obscured by dirt in the picture). I expect there are other lines extending from the valves in the box, but I have found it challenging to unearth all the equipment inside the box, preventing me from locating all of the lines.
I think I need to find a threaded port downstream of a backflow preventer valve, so that I can connect the air compressor to that threaded port. I thought I would find that threaded port inside the pictured box. But so far, I have failed at that.
My first, very specific question- with the limited information in the pictures I've given, can anyone identify the two items I marked with a question mark?
More generally, any thoughts to get me on the right track here? Do I need to keep digging out the contents of the box to find the connection point for the air compressor? Or do I need to look elsewhere?
Thanks in advance for any help you can offer!
Neil