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Original Message Drip Irrigation
All the literature
-I've read stated a 1 gph emmitter per
-shrub and about 2 1/2 hours to equal 1"
-of water per week. After 5 hours only a
-small area around the emmitter was
-wetted and DID NOT spread throughout
-the root zone. _

My drippers vary quite a bit depending on water pressure. That's probably what's happening with yours.
One thing to watch carefully-with very loose soil, you may have to use more than one emitter per plant, because the water does not spread much. In my clay soil, it forms an inverted cone that's about a foot across at 8 inches. When I've used the same emitter in a sandy, raised bed with lots of organic matter, it seems to go straight down and barely spread out.

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