Here’s my okra. I have 4 rows that are 50 feet long watered with soaker hose connected to a 3/4″ PVC manifold on a 40″ row spacing. That’s kinda tight for okra. I bet I get really itchy trying to squeeze through that narrow row. When I row water okra I use a 54″ row spacing. I just used the manifold that I already had. This manifold is fed by a garden hose and is not automated.