Nice patch you got there! If its not a trouble, i'll appreciate a closer photo of the construction for supporting the strings. Just to see the materials, and the way you connect them.
The materials are straight forward here in the states. The tubes are light weight steel electrical conduit (called EMT here.) After some initial mistakes the joiners are steel electrical junction boxes with box to EMT joiners. The EMT was flattened on one end to make driving into the ground easier. AFTER driving the four corners into the ground the tops were trimmed with a tubing cutter. (The tube to box joiners won't accept a buggered up tube end.) The horizontal members were used full length (10') or trimmed to fit the patch. Once the frame was complete a piece of wire was attached to it centered over each row of plants.
Pic 1 -- A 4"X 4" junction box w/ connectors and tubes (These were salvaged boxes so some extra holes were accepted.)
Pic 2 -- Two verticals, the central crossbar and the long bars extending toward the other end. I found the crossbars tend to come loose so I added a wire to keep those connections in compression.
Pic 3 -- The other end of long bars and showing a bastard bent tube used to string an odd row where the two patches join. On the right note my first frame.
The joining was different. IMO it is not as strong and much more expensive involving EMT ell's and tee's I had to buy.
Hope this helps. If not ask for clarification. I'll give it if I can.
I'll start tying the spindly plants next week.
John
