greenhouse using 1/2" EMT

[jollygreenmidget]

I'm building a greenhouse using 1/2" EMT (electrical conduit) from HD. I'm too cheap to buy the connectors so I bought a couple lengths of the 3/4" to cut up and use as connectors. I made a pipe bender to bend the hoops and attached 3 bent hoops together to get a span of ~23' with a height of ~8'. You can adjust it by moving the ends closer or farther apart. The picture shows most of the hoops up. I have 10 hoops at 3' spacing. The problem where I live is the wind.