I will be happy to recommend EarthCare Landscaping to others based on my experience.
Since installing our first subsurface drip irrigation for a lawn in 1997 we have installed dozens of these systems. A typical subsurface system consists of a high-quality filter at the valve as well as an automatic flush valve at the end of the line. These two components in addition to the already clog resistant emitters, helps ensure no clogging occurs. The lines, which have these emitters built in every 12”, are typically laid out 16” apart in parallel lines a few inches deep.
At EarthCare Landscaping we are dedicated to promoting and practicing the principles of sustainable / ecological landscaping in the Bay Area.