On Wed, 26 Jun 2013 05:06:19 +0000 (UTC), "Danny D."
wrote:

On Tue, 25 Jun 2013 17:50:41 -0700, Oren wrote:

use an 8 port manifold

I had not even thought of that, but it has the advantage that
the drip lines would all radiate from the same point, so the
water flow should be even, right?

Yes you can adjust the drip head or adjust the flow at the manifold.

I have large tress )Palm and African Sumac) and Foxtail grass.

Sample:

http://www.gregsindigenouslandscapes.com.au/images/Pennisetum%20setaceum.jpg