Okay, now that Hunter has officially introduced its RZWS (Root Zone Watering System) Im anxious to see how many people will flock to these. Basically being an underground bubbler, or drip system, Im still presuming that the effectiveness of the RZWS will largely be dependant upon the type of soil. Any bubbler, above ground or below, will very likely have a tougher time saturating soil in a horizontal plane than vertical, especially if the soil is something like marine sand. Lets face it; a lot of people are turned away from drip irrigation because of poor horizontal dispersion. I do see benefits to the RZWS in some cases. Hunter mentions that the system encourages roots to grow deep and to remain below the surface Sure, but my question is as the roots of a tree grow beyond the influence of the RZWS, then what happens? Can you keep a mature aspen from sending up suckers thirty feet away? Hunter mentions less runoff when using RZWS. That certainly makes sense if youre comparing it to a similar above ground system. The RZWS can be equipped with drip emitters, but as the flow rate decreases to GPH rather than GPM runoff certainly will be less of an issue, below or above ground. Right? So given the right place, the right situation, would you go this route?